Abstract

We study here the effect of the electrode parameters on the terahertz emission efficiency of large-area emitters based on interdigitated electrodes. Electrode parameters are optimized to get maximum terahertz emission by optimizing the balance condition among the emission efficiency of individual electrode pairs, number of emitters per unit area, and fraction of semiconductor exposed for optical pumping. A maximum enhancement by about 50% in the peak to peak electric field is observed as compared to the previous state of the art design.

© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

1. Introduction

The photoconductive (PC) technique of terahertz (THz) generation has many advantages over other techniques, in particular high conversion efficiency, easy electrical modulation and stable operation. That is why despite being one of the oldest techniques, it is still one of the most popular techniques for THz generation for many applications in the 0.1-5 THz spectral band; for example chemical identification, material characterization, imaging etc [1–4]. These applications of THz radiation require higher THz field for better signal-to-noise ratio and faster data acquisition time. Therefore, improving the efficiency of photoconductive emitters has been continuously in the focus of researchers in the field. A major breakthrough was large-area PC emitters based on interdigitated electrode structures [5]. A large-area emitter (LAE) does not only enable the emitter to be pumped with higher energy pump pulses without going into saturation, it also improves the free-space coupling of the THz signal radiated from the photoconducting substrate. In addition, it reduces the necessity of THz lenses attached to the emitter. With these advantages LAEs outperform a regular PC sources using single emitters. THz electric fields as high as 36 kV/cm have been achieved with LAEs, which is still the maximum electric field reported form any PC emitter [5,6].

There have been significant improvements in PC emitters based on nanostructures in recent times [7–12], but their implementation in LAEs is quite challenging due to fabrication limitations. Improvement in the efficiency of LAEs without complicating fabrication techniques is strongly needed, and it will be a real improvement in the state of the art as LAEs are actually at the forefront of PC emitters. The typical design of an interdigitated electrode LAE can be found in reference [5]. In this design only 25% of the pump light is falling on the active area of the device, the remaining 75% of pump light is falling on electrodes and area covered with metal. To avoid the wastage of pump light, micro lens arrays have been used [13]. But this approach requires careful alignment of microlenses, increases the cost of the emitter, and reduces the robustness. A few other electrode structures have been tried for fabricating interdigitated LAEs but with a rather difficult fabrication process due to their complex designs [14–16].

Not much has been reported on improvements of interdigitated LAEs making use of simple fabrication techniques. In our previous studies on strip line emitters [17] consisting of a pair of coplanar metal stripes, we have shown that the THz emission performance of such an electrode pair increases with the anode width, and that the cathode width does not affect significantly the THz emission efficiency. This result suggests that suitable geometries based on unequal anode and cathode widths should also give rise to enhanced THz emission in the case of interdigitated LAEs.

We investigate here different designs of interdigitated LAEs to optimize the electrode widths and gaps to achieve maximum THz emission. Comparing the THz emission efficiencies of our new electrode structures to those of symmetric electrode structures used in reference [5,6], which has demonstrated the highest PC emitter-based THz electric fields, we indeed observe enhanced THz emission by up to 50% .

2. Strip line emitters

Our previous studies on strip line emitters [17] have shown that the THz emission performance of strip line electrode pairs increases with the anode width a, and the cathode width c does not play much role to determine the THz emission efficiency. This fact can be used to enhance the THz radiation from individual emitters in the interdigitated LAEs. But increasing the anode width reduces the number of emitters (electrode pairs) per unit area in the LAEs. Reduced number of emitters will cause reduction in overall THz radiation from the LAE.

After the pump pulse excitation, the photogenerated electrons move towards the anode and a current surge is injected in the anode. This current surge (or the plasmons [17]) propagates along the anode width in case of strip line and causes the anode to act like a dipole antenna making it emit the THz radiation. The THz emission from an individual strip line emitter due to the plasmonic excitation in the anode after photocurrent injection, scales linearly with the anode width a, for a much smaller than the THz wavelength, and saturates for wider anode width. The anode width dependence of the efficiency of a strip line emitter (ηSL) can be represented by a saturation-like behavior with a saturation length (constant) L

ηSLa×11+a/L
From our previous studies on strip line emitters, the saturation length L is expected to be ~40 µm for the Au electrode on GaAs substrate [17].

The gap b between strip lines can also play a role on the THz emission performance of the strip line emitter. Four strip line emitters with electrode gaps of 5 µm, 10 µm, 15 µm and 20 µm are studied keeping the electrode widths 20 µm for each emitter. Emitters are tested in a standard THz time domain spectroscopy (THz-TDS) setup using electro-optic detection with 1 mm ZnTe. Emitters are pumped using a Ti:sapphire laser at 800 nm with ~100 fs laser pulses at 78 MHz repetition rate. The pump diameter on the emitter is 30 µm for all four strip line emitters. Results are shown in Figs. 1(a) and 1(b). The emitted THz field amplitude, for equally wide electrodes and the same amount of applied electric field (5 kV/cm) between the electrodes, increases with the electrode gap. This increase in THz amplitude is due to an increased number of photogenerated charge carriers getting accelerated under the influence of the same amount of bias field and causing THz emission within the semiconductor without reaching the electrodes. Increasing the gap from 15 µm to 20 µm does not result in an increase of photogenerated charge carriers between the two electrodes by the same fraction because the electrode gap is approaching the size of the pump spot. The THz emission due to plasmonic excitation at the electrodes after photocurrent injection should be equal for all four emitters as the bias field and electrode widths are equal. THz pulse emission takes place within a few ps after the pump pulse excitation. At the applied bias field in GaAs photogenerated charge carriers cannot travel longer than a few hundred nm in few ps due to the saturation drift velocity of the electrons [18]· Hence the fraction of photocarriers contributing to plasmonic THz emission at the electrodes is much smaller than 1 for the electrode gap of 5 µm and larger. Note, however, that carriers in the metallization contribute more efficiently to the THz emission compared to carriers within the semiconductor [19]. Therefore, roughly all the photogenerated charge carriers can be considered to cause THz emission within the semiconductor. Terahertz emission efficiency in a strip line emitter due to this mechanism (ηSC) is proportional to the number of photogenerated charge carriers in the emitter (ηSCαb). Hence we obtain for the total THz emission efficiency from a single pair of strip line electrodes

ETHz=k1a(1+a/L)+k2b
where k1 and k2 are proportionality constants for the two mechanisms of THz emission. Values of k1 and k2 describe the THz emission efficiency due to the antenna effect on the metallic anode and due to the carrier acceleration within the semiconductor, respectively. So far, there has not been any report describing the fraction of the THz emission taking place due to the antenna effect of the electrode and the fraction of THz emission taking place in the semiconductor. We calculated the ratio of k1 and k2 using the results plotted in Fig. 1(b) and k1:k2 is 0.9. It means the THz emission per unit area due to the optically pumped semiconductor is roughly equal to the THz emission per unit area from the anode after the photocurrent injection. In other words, it means that the rate of current change caused due to photo excitation in the semiconductor, propagates in the anode without much change. Hence THz emission efficiency per unit area from the semiconductor and the anode is roughly the same.

 figure: Fig. 1

Fig. 1 (a) Comparison of the electric field of the emitted THz pulses from strip line emitters with different electrode gap but at the same applied field and pump power. (b) Variation of the peak-to-peak electric field amplitude of the THz pulses emitted from the strip line emitters. A dotted straight line is drawn to show the linearity of the data points for the electrode gaps of 5 µm, 10 µm and 15 µm.

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3. Large-area emitters and a model for expected efficiencies

Several large-area emitters with varying parameters, as listed in Table 1, are fabricated. A schematic diagram of an interdigitated LAE is shown in Fig. 2(a). The width of the anode ( + V bias) is a, excitation (bright) area gap between the electrodes is b, the width of the cathode (-V bias) is c, and the dark area gap is d. All emitters are fabricated on semi-insulating GaAs (SI-GaAs). 50 nm Au/ 5nm Cr is used for electrodes. Then an insulating layer of 600 nm of SiO2 is deposited. On top of that there is metallic (Au) covering layer for alternate gaps (d) between the electrodes to avoid the excitation of the alternate gaps of the LAEs. Standard photolithography techniques are used to fabricate the emitters. A microscope image of a part of one LAE is shown in Fig. 2(b). Emitter #1 and #2 have the conventional LAE design [5,6].

Tables Icon

Table 1. List of devices and their parameters.

 figure: Fig. 2

Fig. 2 (a) Schematic diagram of the LAE with interdigitated electrode structure. (b) Microscope image of a part of one of the LAEs.

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Expected relative efficiencies of these devices are estimated using a model based on our previous studies on strip line emitters [18]. If we uniformly excite an area with diameter D covering N = D / p (with the period p = a + b + c + d) individual emitters on the LAE and the same amount of electric field is applied across the bright gap of the LAEs, the total THz radiation amplitude should beETHzN×(ηSL+ηSC) because the total area acting as THz emitter is not much larger than the THz wavelength in our measurements. The excitation laser spot diameter (area) on the emitter also determines diffraction related losses of the THz radiation, but here we are not considering this effect because the excitation area is the same for all large-area emitters in our measurements.

Since, for a fixed illuminated area on the emitter, N is inversely proportional to the strip line emitter’s period, we thus obtain

ETHz(a.u.)=k1ap(1+a/L)+k2bp

Relative enhancement factors of all emitters as compared to emitter #1 (5-5-5-5) are estimated using Eq. (3) and listed in Table 1.

4. Experiments on LAEs

LAEs are characterized using the same THz-TDS setup and Ti:sapphire laser system. A lens with 5 cm focal length is placed before the LAE. The position (distance from emitter) of the lens is optimized to achieve the maximum THz signal for each emitter. Maximum THz signal is achieved when an area of ~0.5 mm diameter on the LAE is illuminated. A pump power of 200 mW is used to illuminate all large-area emitters. A square wave voltage pulse with 50% duty cycle and frequency ~64 kHz is used to bias the emitters. The + V and –V terminals of the bias are connected to the anode and cathode of the LAE, respectively.

First we compare the performance of emitters #1 and #2 which have regular structure with a = b = c = d ( = 5 µm and 10 µm respectively). A bias field of 4 kV/cm in the active area gap is applied on both emitters by applying 2 V and 4 V bias, respectively. Recorded THz pulses and corresponding Fourier transforms are shown in Figs. 3(a) and 3(b) respectively. There is not much difference in the THz pulse amplitude and the spectrum between the emitted THz pulses from the two emitters. The observed relative efficiency of emitter #2 as compared to emitter #1 is 0.879 and the estimated relative efficiency is 0.955. Relative efficiency of emitter #2 close to 1 is not surprising as both emitters have similar electrode design except the scaling factor which is compensated by the applied bias. The fraction of pump light being utilized by both devices is the same at 25%. Thus emitter #2 shows roughly the same amount of THz emission efficiency as compared to emitter #1 which has previously shown THz electric field as high as 36 kV/cm [6], but the fabrication yield and the robustness of the device will be better since the minimum feature size of the device is twice as large as for emitter #1.

 figure: Fig. 3

Fig. 3 (a) Comparison of the electric field of the emitted THz pulses from emitters #1 and #2 when pumped with 200 mW at 4 kV/cm bias on the bright gap. (b) Corresponding spectra achieved after taking the Fourier transform of the time domain pulses.

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Now we compare the devices #2, #3 and #4 which have the electrode gap (b) equal to 10 µm for the active area of each individual strip line emitter on the LAEs. A bias field of 4 kV/cm in the active area gap is realized by applying 4 V bias. Emitter #3 and #4 are utilizing 33% of the pump light, whereas emitter #1 and #2 are able to utilize only 25% of the pump light. Emitters #3 and #4 are identical devices but with switched bias polarity. We study the photocurrent vs bias characteristics of emitters #2 and #3 (which is also emitter #4 when negative bias is applied to interchange anode and cathode) at 200 mW average pump power and results are shown Fig. 4(a). Due to better utilization of pump light in emitter #3 (and #4), more photogenerated charge carriers are created and higher photocurrent is observed as compared to emitter #2. The emitted THz pulses from these emitters are shown in Fig. 4(b). As expected emitter #3 shows higher THz amplitude as compared to emitter #2 with the usual design. This enhancement is attributed to two factors- better utilization of pump power to get more THz emission within the semiconductor, and, larger number of emitters per unit area due to reduced period (p) of the strip line emitters. Emitter #4 is also utilizing a higher fraction of the pump power than emitter #2 but the radiated THz amplitude is similar as compared to emitter #2. This is due to reduced width of the anode and hence reduced efficiency of THz emission from the antenna effect. The observed and estimated relative enhancements as compared to emitter #1 are mentioned in Table 1. Emitter #3 shows ~33% enhanced peak-to-peak THz electric field amplitude as compared to emitter #1, whereas the estimated enhancement according to the proposed model is ~27% (see Table 1).

 figure: Fig. 4

Fig. 4 (a) Photocurrent vs voltage characteristics of emitters #2, #3 and #4 (which is emitter #3 with negative bias). Better utilization of pump power in emitter #3 (and #4) gives more photocurrent as compared to emitter #2. (b) The THz pulses emitted from emitters #2, #3 and #4 when pumped with 200 mW and 4 kV/cm applied field on the bright gap between the electrodes.

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Some deviation between the model estimation and experimental observation is not surprising as certain assumptions in the model are not fulfilled in reality, e.g. optical excitation density is not uniform on all emitters.

We also study the LAEs with the bright gap b equal to 20 µm, i.e. emitter #5 (10-20-5-5), #6 (20-20-5-5) and #7 (30-20-5-5) at the pump power of ~200 mW and applied bias field of 4 kV/cm on the active area gap of the LAEs. Emitters #5, #6 and 7# utilize 50%, 40% and 33% of the pump light, respectively. Photocurrent vs bias and emitted THz pulses from these are shown Figs. 5(a) and 5(b). As expected, the emitter with better utilization of pump light yields more photocurrent. Emitter #5 is expected to be most efficient and results also confirm it. Emitter #1 is also tested under identical conditions (i.e. same applied bias field for active area gap) for comparison and the recorded pulse is plotted in Fig. 5(b) in blue. Observed and estimated relative efficiency factors of these emitters, and also emitters #8, #9 and #10, are listed in Table 1. They show reasonable agreement with each other for the narrower anode emitters. Lower than the expected efficiency for increasing anode width indicates a lower value of anode width saturation length (L). This is not surprising because the additional layers of SiO2 and second metallization in the large-area emitters will result in an increase in the effective refractive index of the medium surrounding the emitter electrodes. We have also studied the THz spectra of all LAEs under study (not shown) and did not find any significant difference in their spectral dependence.

 figure: Fig. 5

Fig. 5 (a) Photocurrent vs voltage characteristics of emitters #5, #6 and #7. Again a better utilization of pump power results in more photocurrent. (b) The THz pulses emitted from these emitters are compared with emitter #2.

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5. Conclusion

For photoconductive THz emitters, there has been ambiguity on the relative contribution of the two different THz emission mechanisms: antenna effect of the electrodes and carrier acceleration within the semiconductor. Our studies on several emitters with different electrode parameters do not only elucidate this topic, we also utilize the new information gained on the subject to design electrodes for LAEs with improved THz emission efficiency. Our best large-area emitter with the anode-gap-cathode-gap parameters as 10 µm-20 µm-5 µm-5 µm shows roughly 50% enhancement in the emitted THz electric field as compared to the previous state of the art [6] which has demonstrated the highest electric field (36 kV/cm) reported from any photoconductive emitter when pumped with µJ pulses. This enhancement is attributed to better utilization of pump power and optimized antenna effect of the anode.

Funding

Helmholtz Association’s Initiative and Networking Fund (Project No. PD-321).

Acknowledgments

Support by the Nanofabrication Facilities Rossendorf at IBC is gratefully acknowledged. Authors also thank Mr. Bernd Scheumann for metal deposition for the fabrication of strip line emitters.

Disclosures

The authors declare that there are no conflicts of interest related to this article.

References

1. M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007). [CrossRef]  

2. P. Siegel, “Terahertz technology in biology and medicine,” IEEE Trans. Microw. Theory Tech. 52(10), 2438–2447 (2004). [CrossRef]  

3. C. A. Schmuttenmaer, “Exploring dynamics in the far-infrared with terahertz spectroscopy,” Chem. Rev. 104(4), 1759–1779 (2004). [CrossRef]   [PubMed]  

4. S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017). [CrossRef]  

5. A. Dreyhaupt, S. Winnerl, T. Dekorsy, and M. Helm, “High-intensity terahertz radiation from a microstructured large-area photoconductor,” Appl. Phys. Lett. 86(12), 121114 (2005). [CrossRef]  

6. M. Beck, H. Schäfer, G. Klatt, J. Demsar, S. Winnerl, M. Helm, and T. Dekorsy, “Impulsive terahertz radiation with high electric fields from an amplifier-driven large-area photoconductive antenna,” Opt. Express 18(9), 9251–9257 (2010). [CrossRef]   [PubMed]  

7. C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013). [CrossRef]   [PubMed]  

8. A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015). [CrossRef]   [PubMed]  

9. S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012). [CrossRef]   [PubMed]  

10. S. Winnerl, “Scalable microstructured photoconductive terahertz emitters,” J. Infrared Millim. THz Waves 33, 431–454 (2012).

11. M. Jarrahi, “Advanced photoconductive terahertz optoelectronics based on nano-antennas and nano-plasmonic light concentrators,” IEEE Trans. Terahertz Sci. Technol. 5(3), 391–397 (2015). [CrossRef]  

12. N. M. Burford and M. O. El-Shenawee, “Review of terahertz photoconductive antenna technology,” Opt. Eng. 56(1), 010901 (2017). [CrossRef]  

13. G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008). [CrossRef]  

14. N. T. Yardimci, S.-H. Yang, C. W. Berry, and M. Jarrahi, “High-power terahertz generation using large-area plasmonic photoconductive emitters,” IEEE Trans. Terahertz Sci. Technol. 5(2), 223–229 (2015). [CrossRef]  

15. A. Singh and S. S. Prabhu, “Microlensless interdigitated photoconductive terahertz emitters,” Opt. Express 23(2), 1529–1535 (2015). [CrossRef]   [PubMed]  

16. M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007). [CrossRef]  

17. A. Singh, S. Winnerl, J. C. König-Otto, D. R. Stephan, M. Helm, and H. Schneider, “Plasmonic efficiency enhancement at the anode of strip line photoconductive terahertz emitters,” Opt. Express 24(20), 22628–22634 (2016). [CrossRef]   [PubMed]  

18. S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011). [CrossRef]  

19. S. E. Ralph and D. Grischkowsky, “Trap-enhanced electric fields in semi-insulators: The role of electrical and optical carrier injection,” Appl. Phys. Lett. 59(16), 1972–1974 (1991). [CrossRef]  

References

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  1. M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
    [Crossref]
  2. P. Siegel, “Terahertz technology in biology and medicine,” IEEE Trans. Microw. Theory Tech. 52(10), 2438–2447 (2004).
    [Crossref]
  3. C. A. Schmuttenmaer, “Exploring dynamics in the far-infrared with terahertz spectroscopy,” Chem. Rev. 104(4), 1759–1779 (2004).
    [Crossref] [PubMed]
  4. S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
    [Crossref]
  5. A. Dreyhaupt, S. Winnerl, T. Dekorsy, and M. Helm, “High-intensity terahertz radiation from a microstructured large-area photoconductor,” Appl. Phys. Lett. 86(12), 121114 (2005).
    [Crossref]
  6. M. Beck, H. Schäfer, G. Klatt, J. Demsar, S. Winnerl, M. Helm, and T. Dekorsy, “Impulsive terahertz radiation with high electric fields from an amplifier-driven large-area photoconductive antenna,” Opt. Express 18(9), 9251–9257 (2010).
    [Crossref] [PubMed]
  7. C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013).
    [Crossref] [PubMed]
  8. A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
    [Crossref] [PubMed]
  9. S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
    [Crossref] [PubMed]
  10. S. Winnerl, “Scalable microstructured photoconductive terahertz emitters,” J. Infrared Millim. THz Waves 33, 431–454 (2012).
  11. M. Jarrahi, “Advanced photoconductive terahertz optoelectronics based on nano-antennas and nano-plasmonic light concentrators,” IEEE Trans. Terahertz Sci. Technol. 5(3), 391–397 (2015).
    [Crossref]
  12. N. M. Burford and M. O. El-Shenawee, “Review of terahertz photoconductive antenna technology,” Opt. Eng. 56(1), 010901 (2017).
    [Crossref]
  13. G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
    [Crossref]
  14. N. T. Yardimci, S.-H. Yang, C. W. Berry, and M. Jarrahi, “High-power terahertz generation using large-area plasmonic photoconductive emitters,” IEEE Trans. Terahertz Sci. Technol. 5(2), 223–229 (2015).
    [Crossref]
  15. A. Singh and S. S. Prabhu, “Microlensless interdigitated photoconductive terahertz emitters,” Opt. Express 23(2), 1529–1535 (2015).
    [Crossref] [PubMed]
  16. M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007).
    [Crossref]
  17. A. Singh, S. Winnerl, J. C. König-Otto, D. R. Stephan, M. Helm, and H. Schneider, “Plasmonic efficiency enhancement at the anode of strip line photoconductive terahertz emitters,” Opt. Express 24(20), 22628–22634 (2016).
    [Crossref] [PubMed]
  18. S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011).
    [Crossref]
  19. S. E. Ralph and D. Grischkowsky, “Trap-enhanced electric fields in semi-insulators: The role of electrical and optical carrier injection,” Appl. Phys. Lett. 59(16), 1972–1974 (1991).
    [Crossref]

2017 (2)

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

N. M. Burford and M. O. El-Shenawee, “Review of terahertz photoconductive antenna technology,” Opt. Eng. 56(1), 010901 (2017).
[Crossref]

2016 (1)

2015 (4)

M. Jarrahi, “Advanced photoconductive terahertz optoelectronics based on nano-antennas and nano-plasmonic light concentrators,” IEEE Trans. Terahertz Sci. Technol. 5(3), 391–397 (2015).
[Crossref]

N. T. Yardimci, S.-H. Yang, C. W. Berry, and M. Jarrahi, “High-power terahertz generation using large-area plasmonic photoconductive emitters,” IEEE Trans. Terahertz Sci. Technol. 5(2), 223–229 (2015).
[Crossref]

A. Singh and S. S. Prabhu, “Microlensless interdigitated photoconductive terahertz emitters,” Opt. Express 23(2), 1529–1535 (2015).
[Crossref] [PubMed]

A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
[Crossref] [PubMed]

2013 (1)

C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013).
[Crossref] [PubMed]

2012 (2)

S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
[Crossref] [PubMed]

S. Winnerl, “Scalable microstructured photoconductive terahertz emitters,” J. Infrared Millim. THz Waves 33, 431–454 (2012).

2011 (1)

S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011).
[Crossref]

2010 (1)

2008 (1)

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
[Crossref]

2007 (2)

M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007).
[Crossref]

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
[Crossref]

2005 (1)

A. Dreyhaupt, S. Winnerl, T. Dekorsy, and M. Helm, “High-intensity terahertz radiation from a microstructured large-area photoconductor,” Appl. Phys. Lett. 86(12), 121114 (2005).
[Crossref]

2004 (2)

P. Siegel, “Terahertz technology in biology and medicine,” IEEE Trans. Microw. Theory Tech. 52(10), 2438–2447 (2004).
[Crossref]

C. A. Schmuttenmaer, “Exploring dynamics in the far-infrared with terahertz spectroscopy,” Chem. Rev. 104(4), 1759–1779 (2004).
[Crossref] [PubMed]

1991 (1)

S. E. Ralph and D. Grischkowsky, “Trap-enhanced electric fields in semi-insulators: The role of electrical and optical carrier injection,” Appl. Phys. Lett. 59(16), 1972–1974 (1991).
[Crossref]

Ahn, J.

S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
[Crossref] [PubMed]

Appleby, R.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Awad, M.

M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007).
[Crossref]

Bahrami-Yekta, V.

A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
[Crossref] [PubMed]

Beck, M.

Berry, C. W.

N. T. Yardimci, S.-H. Yang, C. W. Berry, and M. Jarrahi, “High-power terahertz generation using large-area plasmonic photoconductive emitters,” IEEE Trans. Terahertz Sci. Technol. 5(2), 223–229 (2015).
[Crossref]

C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013).
[Crossref] [PubMed]

Booske, J.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Burford, N. M.

N. M. Burford and M. O. El-Shenawee, “Review of terahertz photoconductive antenna technology,” Opt. Eng. 56(1), 010901 (2017).
[Crossref]

Castro-Camus, E.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Clarke, R.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Cocker, T. L.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Cooper, K. B.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Cumming, D. R. S.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Cunningham, J. E.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Darcie, T. E.

A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
[Crossref] [PubMed]

Davies, A. G.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Dekorsy, T.

M. Beck, H. Schäfer, G. Klatt, J. Demsar, S. Winnerl, M. Helm, and T. Dekorsy, “Impulsive terahertz radiation with high electric fields from an amplifier-driven large-area photoconductive antenna,” Opt. Express 18(9), 9251–9257 (2010).
[Crossref] [PubMed]

A. Dreyhaupt, S. Winnerl, T. Dekorsy, and M. Helm, “High-intensity terahertz radiation from a microstructured large-area photoconductor,” Appl. Phys. Lett. 86(12), 121114 (2005).
[Crossref]

Demsar, J.

Dhillon, S. S.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Döhler, G. H.

S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011).
[Crossref]

Dreyhaupt, A.

A. Dreyhaupt, S. Winnerl, T. Dekorsy, and M. Helm, “High-intensity terahertz radiation from a microstructured large-area photoconductor,” Appl. Phys. Lett. 86(12), 121114 (2005).
[Crossref]

Ellison, B.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

El-Shenawee, M. O.

N. M. Burford and M. O. El-Shenawee, “Review of terahertz photoconductive antenna technology,” Opt. Eng. 56(1), 010901 (2017).
[Crossref]

Escorcia-Carranza, I.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Fice, M.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Gensch, M.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Goldsmith, P.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Gordon, R.

A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
[Crossref] [PubMed]

Gossard, A. C.

S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011).
[Crossref]

Grant, J.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Grischkowsky, D.

S. E. Ralph and D. Grischkowsky, “Trap-enhanced electric fields in semi-insulators: The role of electrical and optical carrier injection,” Appl. Phys. Lett. 59(16), 1972–1974 (1991).
[Crossref]

Hashemi, M. R.

C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013).
[Crossref] [PubMed]

Helm, M.

Herfort, J.

M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007).
[Crossref]

Hoffmann, M. C.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Hohmuth, R.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
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Huber, R.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Huggard, P. G.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Jarrahi, M.

M. Jarrahi, “Advanced photoconductive terahertz optoelectronics based on nano-antennas and nano-plasmonic light concentrators,” IEEE Trans. Terahertz Sci. Technol. 5(3), 391–397 (2015).
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N. T. Yardimci, S.-H. Yang, C. W. Berry, and M. Jarrahi, “High-power terahertz generation using large-area plasmonic photoconductive emitters,” IEEE Trans. Terahertz Sci. Technol. 5(2), 223–229 (2015).
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C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013).
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Jeong, K. H.

S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
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Jin, K. H.

S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
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Johnston, M. B.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Jooshesh, A.

A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
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Klatt, G.

Koch, M.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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König-Otto, J. C.

Konishi, K.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Korter, T. M.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Krozer, V.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Kurz, H.

M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007).
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Kuwata-Gonokami, M.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Linfield, E. H.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Lucyszyn, S.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Malzer, S.

S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011).
[Crossref]

Markelz, A. G.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Matthäus, G.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
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Naftaly, M.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Nagel, M.

M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007).
[Crossref]

Nolte, S.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
[Crossref]

Notni, G.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
[Crossref]

Paoloni, C.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Pardo, D.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Park, S. G.

S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
[Crossref] [PubMed]

Ploog, K.

M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007).
[Crossref]

Prabhu, S. S.

Pradarutti, B.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
[Crossref]

Preu, S.

S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011).
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Ralph, S. E.

S. E. Ralph and D. Grischkowsky, “Trap-enhanced electric fields in semi-insulators: The role of electrical and optical carrier injection,” Appl. Phys. Lett. 59(16), 1972–1974 (1991).
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Rea, S.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Renaud, C.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Richter, W.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
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Ridler, N.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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Riehemann, S.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
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Schäfer, H.

Schmuttenmaer, C. A.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
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C. A. Schmuttenmaer, “Exploring dynamics in the far-infrared with terahertz spectroscopy,” Chem. Rev. 104(4), 1759–1779 (2004).
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Schneider, H.

Seeds, A.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Shams, H.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Sibik, J.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Siegel, P.

P. Siegel, “Terahertz technology in biology and medicine,” IEEE Trans. Microw. Theory Tech. 52(10), 2438–2447 (2004).
[Crossref]

Simoens, F.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Singh, A.

Stephan, D. R.

Stöhr, A.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Taylor, Z. D.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Tiedje, T.

A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
[Crossref] [PubMed]

Tonouchi, M.

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
[Crossref]

Tünnermann, A.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
[Crossref]

Unlu, M.

C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013).
[Crossref] [PubMed]

Vitiello, M. S.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Voitsch, M.

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
[Crossref]

Wallace, V. P.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Wang, L. J.

S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011).
[Crossref]

Wang, N.

C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013).
[Crossref] [PubMed]

Weightman, P.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Williams, G. P.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Winnerl, S.

Yang, S.-H.

N. T. Yardimci, S.-H. Yang, C. W. Berry, and M. Jarrahi, “High-power terahertz generation using large-area plasmonic photoconductive emitters,” IEEE Trans. Terahertz Sci. Technol. 5(2), 223–229 (2015).
[Crossref]

Yardimci, N. T.

N. T. Yardimci, S.-H. Yang, C. W. Berry, and M. Jarrahi, “High-power terahertz generation using large-area plasmonic photoconductive emitters,” IEEE Trans. Terahertz Sci. Technol. 5(2), 223–229 (2015).
[Crossref]

Ye, J. C.

S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
[Crossref] [PubMed]

Yi, M.

S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
[Crossref] [PubMed]

Zeitler, J. A.

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Zhang, J.

A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
[Crossref] [PubMed]

ACS Nano (1)

S. G. Park, K. H. Jin, M. Yi, J. C. Ye, J. Ahn, and K. H. Jeong, “Enhancement of terahertz pulse emission by optical nanoantenna,” ACS Nano 6(3), 2026–2031 (2012).
[Crossref] [PubMed]

Appl. Phys. Lett. (4)

G. Matthäus, S. Nolte, R. Hohmuth, M. Voitsch, W. Richter, B. Pradarutti, S. Riehemann, G. Notni, and A. Tünnermann, “Micro lens coupled interdigital photoconductive switch,” Appl. Phys. Lett. 93(9), 091110 (2008).
[Crossref]

M. Awad, M. Nagel, H. Kurz, J. Herfort, and K. Ploog, “Characterization of low temperature GaAs antenna array terahertz emitters,” Appl. Phys. Lett. 91(18), 181124 (2007).
[Crossref]

A. Dreyhaupt, S. Winnerl, T. Dekorsy, and M. Helm, “High-intensity terahertz radiation from a microstructured large-area photoconductor,” Appl. Phys. Lett. 86(12), 121114 (2005).
[Crossref]

S. E. Ralph and D. Grischkowsky, “Trap-enhanced electric fields in semi-insulators: The role of electrical and optical carrier injection,” Appl. Phys. Lett. 59(16), 1972–1974 (1991).
[Crossref]

Chem. Rev. (1)

C. A. Schmuttenmaer, “Exploring dynamics in the far-infrared with terahertz spectroscopy,” Chem. Rev. 104(4), 1759–1779 (2004).
[Crossref] [PubMed]

IEEE Trans. Microw. Theory Tech. (1)

P. Siegel, “Terahertz technology in biology and medicine,” IEEE Trans. Microw. Theory Tech. 52(10), 2438–2447 (2004).
[Crossref]

IEEE Trans. Terahertz Sci. Technol. (2)

N. T. Yardimci, S.-H. Yang, C. W. Berry, and M. Jarrahi, “High-power terahertz generation using large-area plasmonic photoconductive emitters,” IEEE Trans. Terahertz Sci. Technol. 5(2), 223–229 (2015).
[Crossref]

M. Jarrahi, “Advanced photoconductive terahertz optoelectronics based on nano-antennas and nano-plasmonic light concentrators,” IEEE Trans. Terahertz Sci. Technol. 5(3), 391–397 (2015).
[Crossref]

J. Appl. Phys. (1)

S. Preu, G. H. Döhler, S. Malzer, L. J. Wang, and A. C. Gossard, “Tunable, continuous-wave Terahertz photomixer sources and applications,” J. Appl. Phys. 109(6), 061301 (2011).
[Crossref]

J. Infrared Millim. THz Waves (1)

S. Winnerl, “Scalable microstructured photoconductive terahertz emitters,” J. Infrared Millim. THz Waves 33, 431–454 (2012).

J. Phys. D Appl. Phys. (1)

S. S. Dhillon, M. S. Vitiello, E. H. Linfield, A. G. Davies, M. C. Hoffmann, J. Booske, C. Paoloni, M. Gensch, P. Weightman, G. P. Williams, E. Castro-Camus, D. R. S. Cumming, F. Simoens, I. Escorcia-Carranza, J. Grant, S. Lucyszyn, M. Kuwata-Gonokami, K. Konishi, M. Koch, C. A. Schmuttenmaer, T. L. Cocker, R. Huber, A. G. Markelz, Z. D. Taylor, V. P. Wallace, J. A. Zeitler, J. Sibik, T. M. Korter, B. Ellison, S. Rea, P. Goldsmith, K. B. Cooper, R. Appleby, D. Pardo, P. G. Huggard, V. Krozer, H. Shams, M. Fice, C. Renaud, A. Seeds, A. Stöhr, M. Naftaly, N. Ridler, R. Clarke, J. E. Cunningham, and M. B. Johnston, “The 2017 terahertz science and technology roadmap,” J. Phys. D Appl. Phys. 50(4), 043001 (2017).
[Crossref]

Nano Lett. (1)

A. Jooshesh, V. Bahrami-Yekta, J. Zhang, T. Tiedje, T. E. Darcie, and R. Gordon, “Plasmon-enhanced below bandgap photoconductive terahertz generation and detection,” Nano Lett. 15(12), 8306–8310 (2015).
[Crossref] [PubMed]

Nat. Commun. (1)

C. W. Berry, N. Wang, M. R. Hashemi, M. Unlu, and M. Jarrahi, “Significant performance enhancement in photoconductive terahertz optoelectronics by incorporating plasmonic contact electrodes,” Nat. Commun. 4(1), 1622 (2013).
[Crossref] [PubMed]

Nat. Photonics (1)

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
[Crossref]

Opt. Eng. (1)

N. M. Burford and M. O. El-Shenawee, “Review of terahertz photoconductive antenna technology,” Opt. Eng. 56(1), 010901 (2017).
[Crossref]

Opt. Express (3)

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Figures (5)

Fig. 1
Fig. 1 (a) Comparison of the electric field of the emitted THz pulses from strip line emitters with different electrode gap but at the same applied field and pump power. (b) Variation of the peak-to-peak electric field amplitude of the THz pulses emitted from the strip line emitters. A dotted straight line is drawn to show the linearity of the data points for the electrode gaps of 5 µm, 10 µm and 15 µm.
Fig. 2
Fig. 2 (a) Schematic diagram of the LAE with interdigitated electrode structure. (b) Microscope image of a part of one of the LAEs.
Fig. 3
Fig. 3 (a) Comparison of the electric field of the emitted THz pulses from emitters #1 and #2 when pumped with 200 mW at 4 kV/cm bias on the bright gap. (b) Corresponding spectra achieved after taking the Fourier transform of the time domain pulses.
Fig. 4
Fig. 4 (a) Photocurrent vs voltage characteristics of emitters #2, #3 and #4 (which is emitter #3 with negative bias). Better utilization of pump power in emitter #3 (and #4) gives more photocurrent as compared to emitter #2. (b) The THz pulses emitted from emitters #2, #3 and #4 when pumped with 200 mW and 4 kV/cm applied field on the bright gap between the electrodes.
Fig. 5
Fig. 5 (a) Photocurrent vs voltage characteristics of emitters #5, #6 and #7. Again a better utilization of pump power results in more photocurrent. (b) The THz pulses emitted from these emitters are compared with emitter #2.

Tables (1)

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Table 1 List of devices and their parameters.

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

η SL a× 1 1+a/L
E THz = k 1 a (1+a/L ) + k 2 b
E THz (a.u.)= k 1 a p(1+a/L ) + k 2 b p

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