Abstract

A compact high-resolution THz time-domain waveguide spectrometer that is operated inside a cryostat is demonstrated. A THz photo-Dember emitter and a ZnTe electro-optic detection crystal are directly attached to a parallel copper-plate waveguide. This allows the THz beam to be excited and detected entirely inside the cryostat, obviating the need for THz-transparent windows or external THz mirrors. Since no external bias for the emitter is required, no electric feed-through into the cryostat is necessary. Using asynchronous optical sampling, high resolution THz spectra are obtained in the frequency range from 0.2 to 2.0 THz. The THz emission from the photo-Dember emitter and the absorption spectrum of 1,2-dicyanobenzene film are measured as a function of temperature. An absorption peak around 750 GHz of 1,2-dicyanobenzene displays a blue shift with increasing temperature.

© 2012 OSA

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    [CrossRef]
  4. J. S. Melinger, S. S. Harsha, N. Laman, and D. Grischkowsky, “Guided-wave terahertz spectroscopy of molecular solids,” J. Opt. Soc. Am. B26(9), A79–A89 (2009).
    [CrossRef]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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2011 (1)

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

2010 (3)

2009 (2)

2007 (2)

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, “Ultrafast timedomain spectroscopy based on high-speed asynchronous optical sampling,” Rev. Sci. Instrum.78(3), 035107 (2007).
[CrossRef] [PubMed]

N. Laman and D. Grischkowsky, “Reduced conductivity in terahertz skin-depth layer of metals,” Appl. Phys. Lett.90(12), 122115 (2007).
[CrossRef]

2006 (2)

J. S. Melinger, N. Laman, S. S. Harsha, and D. Grischkowsky, “Line narrowing of terahertz vibrational modes for organic thin polycrystalline films within a parallel plate waveguide,” Appl. Phys. Lett.89(25), 251110 (2006).
[CrossRef]

A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm, “Highresolution THz spectrometer with kHz scan rates,” Opt. Express14(1), 430–437 (2006).
[CrossRef] [PubMed]

2005 (2)

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]

N. C. J. van der Valk, P. C. M. Planken, A. N. Buijserd, and H. J. Bakker, “Influence of pump wavelength and crystal length on the phase matching of optical rectification,” J. Opt. Soc. Am. B22(8), 1714–1718 (2005).
[CrossRef]

2004 (3)

2002 (1)

M. B. Johnston, D. M. Whittaker, A. Corchia, A. G. Davies, and E. H. Linfield, “Simulation of terahertz generation at semiconductor surfaces,” Phys. Rev. B65(16), 165301 (2002).
[CrossRef]

2001 (2)

Y. M. Yu, S. Nam, K. S. Lee, Y. D. Choi, and B. O, “Photoluminescence characteristics of ZnTe epilayers,” J. Appl. Phys.90(2), 807–812 (2001).
[CrossRef]

M. Schall, M. Walther, and P. Uhd Jepsen, “Fundamental and second-order phonon processes in CdTe and ZnTe,” Phys. Rev. B64(9), 094301 (2001).
[CrossRef]

2000 (1)

1996 (1)

T. Dekorsy, H. Auer, H. J. Bakker, H. G. Roskos, and H. Kurz, “THz electromagnetic emission by coherent infrared-active phonons,” Phys. Rev. B Condens. Matter53(7), 4005–4014 (1996).
[CrossRef] [PubMed]

1995 (1)

Q. Wu and X.-C. Zhang, “Free-space electro-optic sampling of terahertz beams,” Appl. Phys. Lett.67(24), 3523–3525 (1995).
[CrossRef]

1993 (1)

T. Dekorsy, T. Pfeifer, W. Kütt, and H. Kurz, “Subpicosecond carrier transport in GaAs surface-space-charge fields,” Phys. Rev. B Condens. Matter47(7), 3842–3849 (1993).
[CrossRef] [PubMed]

1984 (1)

Y. Okada and Y. Tokumaru, “Precise determination of lattice parameter and thermal expansion coefficient of silicon between 300 and 1500 K,” J. Appl. Phys.56(2), 314–320 (1984).
[CrossRef]

1966 (1)

T. R. Sliker and J. M. Jost, “Linear electro-optic effect and refractive indices of cubic ZnTe,” Phys. Rev.56, 130–131 (1966).

Adam, A. J. L.

J. R. Knab, A. J. L. Adam, R. Chakkittakandy, and P. C. M. Planken, “Terahertz near-field microspectroscopy,” Appl. Phys. Lett.97(3), 031115 (2010).
[CrossRef]

Auer, H.

T. Dekorsy, H. Auer, H. J. Bakker, H. G. Roskos, and H. Kurz, “THz electromagnetic emission by coherent infrared-active phonons,” Phys. Rev. B Condens. Matter53(7), 4005–4014 (1996).
[CrossRef] [PubMed]

Bakker, H. J.

N. C. J. van der Valk, P. C. M. Planken, A. N. Buijserd, and H. J. Bakker, “Influence of pump wavelength and crystal length on the phase matching of optical rectification,” J. Opt. Soc. Am. B22(8), 1714–1718 (2005).
[CrossRef]

T. Dekorsy, H. Auer, H. J. Bakker, H. G. Roskos, and H. Kurz, “THz electromagnetic emission by coherent infrared-active phonons,” Phys. Rev. B Condens. Matter53(7), 4005–4014 (1996).
[CrossRef] [PubMed]

Bartels, A.

Bastian, G.

Beck, M.

Buijserd, A. N.

Cao, H.

Cerna, R.

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, “Ultrafast timedomain spectroscopy based on high-speed asynchronous optical sampling,” Rev. Sci. Instrum.78(3), 035107 (2007).
[CrossRef] [PubMed]

Chakkittakandy, R.

J. R. Knab, A. J. L. Adam, R. Chakkittakandy, and P. C. M. Planken, “Terahertz near-field microspectroscopy,” Appl. Phys. Lett.97(3), 031115 (2010).
[CrossRef]

Choi, Y. D.

Y. M. Yu, S. Nam, K. S. Lee, Y. D. Choi, and B. O, “Photoluminescence characteristics of ZnTe epilayers,” J. Appl. Phys.90(2), 807–812 (2001).
[CrossRef]

Coleman, S.

S. Coleman and D. Grischkowsky, “Parallel plate THz transmitter,” Appl. Phys. Lett.84(5), 654–656 (2004).
[CrossRef]

Corchia, A.

M. B. Johnston, D. M. Whittaker, A. Corchia, A. G. Davies, and E. H. Linfield, “Simulation of terahertz generation at semiconductor surfaces,” Phys. Rev. B65(16), 165301 (2002).
[CrossRef]

Davies, A. G.

M. B. Johnston, D. M. Whittaker, A. Corchia, A. G. Davies, and E. H. Linfield, “Simulation of terahertz generation at semiconductor surfaces,” Phys. Rev. B65(16), 165301 (2002).
[CrossRef]

Dekorsy, T.

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

G. Klatt, F. Hilser, W. Qiao, M. Beck, R. Gebs, A. Bartels, K. Huska, U. Lemmer, G. Bastian, M. B. Johnston, M. Fischer, J. Faist, and T. Dekorsy, “Terahertz emission from lateral photo-Dember currents,” Opt. Express18(5), 4939–4947 (2010).
[CrossRef] [PubMed]

R. Gebs, G. Klatt, C. Janke, T. Dekorsy, and A. Bartels, “High-speed asynchronous optical sampling with sub-50fs time resolution,” Opt. Express18(6), 5974–5983 (2010).
[CrossRef] [PubMed]

G. Klatt, R. Gebs, C. Janke, T. Dekorsy, and A. Bartels, “Rapid-scanning terahertz precision spectrometer with more than 6 THz spectral coverage,” Opt. Express17(25), 22847–22854 (2009).
[CrossRef] [PubMed]

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, “Ultrafast timedomain spectroscopy based on high-speed asynchronous optical sampling,” Rev. Sci. Instrum.78(3), 035107 (2007).
[CrossRef] [PubMed]

A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm, “Highresolution THz spectrometer with kHz scan rates,” Opt. Express14(1), 430–437 (2006).
[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]

T. Dekorsy, H. Auer, H. J. Bakker, H. G. Roskos, and H. Kurz, “THz electromagnetic emission by coherent infrared-active phonons,” Phys. Rev. B Condens. Matter53(7), 4005–4014 (1996).
[CrossRef] [PubMed]

T. Dekorsy, T. Pfeifer, W. Kütt, and H. Kurz, “Subpicosecond carrier transport in GaAs surface-space-charge fields,” Phys. Rev. B Condens. Matter47(7), 3842–3849 (1993).
[CrossRef] [PubMed]

Dreyhaupt, A.

A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm, “Highresolution THz spectrometer with kHz scan rates,” Opt. Express14(1), 430–437 (2006).
[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]

Faist, J.

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

G. Klatt, F. Hilser, W. Qiao, M. Beck, R. Gebs, A. Bartels, K. Huska, U. Lemmer, G. Bastian, M. B. Johnston, M. Fischer, J. Faist, and T. Dekorsy, “Terahertz emission from lateral photo-Dember currents,” Opt. Express18(5), 4939–4947 (2010).
[CrossRef] [PubMed]

Fischer, M.

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

G. Klatt, F. Hilser, W. Qiao, M. Beck, R. Gebs, A. Bartels, K. Huska, U. Lemmer, G. Bastian, M. B. Johnston, M. Fischer, J. Faist, and T. Dekorsy, “Terahertz emission from lateral photo-Dember currents,” Opt. Express18(5), 4939–4947 (2010).
[CrossRef] [PubMed]

Gallot, G.

Gebs, R.

Grischkowsky, D.

J. S. Melinger, S. S. Harsha, N. Laman, and D. Grischkowsky, “Guided-wave terahertz spectroscopy of molecular solids,” J. Opt. Soc. Am. B26(9), A79–A89 (2009).
[CrossRef]

N. Laman and D. Grischkowsky, “Reduced conductivity in terahertz skin-depth layer of metals,” Appl. Phys. Lett.90(12), 122115 (2007).
[CrossRef]

J. S. Melinger, N. Laman, S. S. Harsha, and D. Grischkowsky, “Line narrowing of terahertz vibrational modes for organic thin polycrystalline films within a parallel plate waveguide,” Appl. Phys. Lett.89(25), 251110 (2006).
[CrossRef]

S. Coleman and D. Grischkowsky, “Parallel plate THz transmitter,” Appl. Phys. Lett.84(5), 654–656 (2004).
[CrossRef]

J. Zhang and D. Grischkowsky, “Waveguide THz time-domain spectroscopy of nm water layers,” Opt. Lett.29(14), 1617–1619 (2004).
[CrossRef] [PubMed]

G. Gallot, S. P. Jamison, R. W. McGowan, and D. Grischkowsky, “Terahertz waveguides,” J. Opt. Soc. Am. B17(5), 851–863 (2000).
[CrossRef]

Harsha, S. S.

J. S. Melinger, S. S. Harsha, N. Laman, and D. Grischkowsky, “Guided-wave terahertz spectroscopy of molecular solids,” J. Opt. Soc. Am. B26(9), A79–A89 (2009).
[CrossRef]

J. S. Melinger, N. Laman, S. S. Harsha, and D. Grischkowsky, “Line narrowing of terahertz vibrational modes for organic thin polycrystalline films within a parallel plate waveguide,” Appl. Phys. Lett.89(25), 251110 (2006).
[CrossRef]

Helm, M.

A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm, “Highresolution THz spectrometer with kHz scan rates,” Opt. Express14(1), 430–437 (2006).
[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]

Hilser, F.

Huber, R.

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

Hudert, F.

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, “Ultrafast timedomain spectroscopy based on high-speed asynchronous optical sampling,” Rev. Sci. Instrum.78(3), 035107 (2007).
[CrossRef] [PubMed]

Huska, K.

Jamison, S. P.

Janke, C.

Johnston, M. B.

Jost, J. M.

T. R. Sliker and J. M. Jost, “Linear electro-optic effect and refractive indices of cubic ZnTe,” Phys. Rev.56, 130–131 (1966).

Kistner, C.

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, “Ultrafast timedomain spectroscopy based on high-speed asynchronous optical sampling,” Rev. Sci. Instrum.78(3), 035107 (2007).
[CrossRef] [PubMed]

Klatt, G.

Knab, J. R.

J. R. Knab, A. J. L. Adam, R. Chakkittakandy, and P. C. M. Planken, “Terahertz near-field microspectroscopy,” Appl. Phys. Lett.97(3), 031115 (2010).
[CrossRef]

Kurz, H.

T. Dekorsy, H. Auer, H. J. Bakker, H. G. Roskos, and H. Kurz, “THz electromagnetic emission by coherent infrared-active phonons,” Phys. Rev. B Condens. Matter53(7), 4005–4014 (1996).
[CrossRef] [PubMed]

T. Dekorsy, T. Pfeifer, W. Kütt, and H. Kurz, “Subpicosecond carrier transport in GaAs surface-space-charge fields,” Phys. Rev. B Condens. Matter47(7), 3842–3849 (1993).
[CrossRef] [PubMed]

Kütt, W.

T. Dekorsy, T. Pfeifer, W. Kütt, and H. Kurz, “Subpicosecond carrier transport in GaAs surface-space-charge fields,” Phys. Rev. B Condens. Matter47(7), 3842–3849 (1993).
[CrossRef] [PubMed]

Laman, N.

J. S. Melinger, S. S. Harsha, N. Laman, and D. Grischkowsky, “Guided-wave terahertz spectroscopy of molecular solids,” J. Opt. Soc. Am. B26(9), A79–A89 (2009).
[CrossRef]

N. Laman and D. Grischkowsky, “Reduced conductivity in terahertz skin-depth layer of metals,” Appl. Phys. Lett.90(12), 122115 (2007).
[CrossRef]

J. S. Melinger, N. Laman, S. S. Harsha, and D. Grischkowsky, “Line narrowing of terahertz vibrational modes for organic thin polycrystalline films within a parallel plate waveguide,” Appl. Phys. Lett.89(25), 251110 (2006).
[CrossRef]

Lee, K. S.

Y. M. Yu, S. Nam, K. S. Lee, Y. D. Choi, and B. O, “Photoluminescence characteristics of ZnTe epilayers,” J. Appl. Phys.90(2), 807–812 (2001).
[CrossRef]

Leitenstorfer, A.

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

Lemmer, U.

Linfield, E. H.

M. B. Johnston, D. M. Whittaker, A. Corchia, A. G. Davies, and E. H. Linfield, “Simulation of terahertz generation at semiconductor surfaces,” Phys. Rev. B65(16), 165301 (2002).
[CrossRef]

Linke, R. A.

McGowan, R. W.

Melinger, J. S.

J. S. Melinger, S. S. Harsha, N. Laman, and D. Grischkowsky, “Guided-wave terahertz spectroscopy of molecular solids,” J. Opt. Soc. Am. B26(9), A79–A89 (2009).
[CrossRef]

J. S. Melinger, N. Laman, S. S. Harsha, and D. Grischkowsky, “Line narrowing of terahertz vibrational modes for organic thin polycrystalline films within a parallel plate waveguide,” Appl. Phys. Lett.89(25), 251110 (2006).
[CrossRef]

Nahata, A.

Nam, S.

Y. M. Yu, S. Nam, K. S. Lee, Y. D. Choi, and B. O, “Photoluminescence characteristics of ZnTe epilayers,” J. Appl. Phys.90(2), 807–812 (2001).
[CrossRef]

O, B.

Y. M. Yu, S. Nam, K. S. Lee, Y. D. Choi, and B. O, “Photoluminescence characteristics of ZnTe epilayers,” J. Appl. Phys.90(2), 807–812 (2001).
[CrossRef]

Okada, Y.

Y. Okada and Y. Tokumaru, “Precise determination of lattice parameter and thermal expansion coefficient of silicon between 300 and 1500 K,” J. Appl. Phys.56(2), 314–320 (1984).
[CrossRef]

Pfeifer, T.

T. Dekorsy, T. Pfeifer, W. Kütt, and H. Kurz, “Subpicosecond carrier transport in GaAs surface-space-charge fields,” Phys. Rev. B Condens. Matter47(7), 3842–3849 (1993).
[CrossRef] [PubMed]

Planken, P. C. M.

Qiao, W.

Roskos, H. G.

T. Dekorsy, H. Auer, H. J. Bakker, H. G. Roskos, and H. Kurz, “THz electromagnetic emission by coherent infrared-active phonons,” Phys. Rev. B Condens. Matter53(7), 4005–4014 (1996).
[CrossRef] [PubMed]

Schall, M.

M. Schall, M. Walther, and P. Uhd Jepsen, “Fundamental and second-order phonon processes in CdTe and ZnTe,” Phys. Rev. B64(9), 094301 (2001).
[CrossRef]

Schubert, O.

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

Sliker, T. R.

T. R. Sliker and J. M. Jost, “Linear electro-optic effect and refractive indices of cubic ZnTe,” Phys. Rev.56, 130–131 (1966).

Stephan, D.

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

Surrer, B.

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[CrossRef]

Thoma, A.

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, “Ultrafast timedomain spectroscopy based on high-speed asynchronous optical sampling,” Rev. Sci. Instrum.78(3), 035107 (2007).
[CrossRef] [PubMed]

A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm, “Highresolution THz spectrometer with kHz scan rates,” Opt. Express14(1), 430–437 (2006).
[CrossRef] [PubMed]

Tokumaru, Y.

Y. Okada and Y. Tokumaru, “Precise determination of lattice parameter and thermal expansion coefficient of silicon between 300 and 1500 K,” J. Appl. Phys.56(2), 314–320 (1984).
[CrossRef]

Uhd Jepsen, P.

M. Schall, M. Walther, and P. Uhd Jepsen, “Fundamental and second-order phonon processes in CdTe and ZnTe,” Phys. Rev. B64(9), 094301 (2001).
[CrossRef]

van der Valk, N. C. J.

Walther, M.

M. Schall, M. Walther, and P. Uhd Jepsen, “Fundamental and second-order phonon processes in CdTe and ZnTe,” Phys. Rev. B64(9), 094301 (2001).
[CrossRef]

Whittaker, D. M.

M. B. Johnston, D. M. Whittaker, A. Corchia, A. G. Davies, and E. H. Linfield, “Simulation of terahertz generation at semiconductor surfaces,” Phys. Rev. B65(16), 165301 (2002).
[CrossRef]

Winnerl, S.

A. Bartels, A. Thoma, C. Janke, T. Dekorsy, A. Dreyhaupt, S. Winnerl, and M. Helm, “Highresolution THz spectrometer with kHz scan rates,” Opt. Express14(1), 430–437 (2006).
[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]

Wu, Q.

Q. Wu and X.-C. Zhang, “Free-space electro-optic sampling of terahertz beams,” Appl. Phys. Lett.67(24), 3523–3525 (1995).
[CrossRef]

Yu, Y. M.

Y. M. Yu, S. Nam, K. S. Lee, Y. D. Choi, and B. O, “Photoluminescence characteristics of ZnTe epilayers,” J. Appl. Phys.90(2), 807–812 (2001).
[CrossRef]

Zhang, J.

Zhang, X.-C.

Q. Wu and X.-C. Zhang, “Free-space electro-optic sampling of terahertz beams,” Appl. Phys. Lett.67(24), 3523–3525 (1995).
[CrossRef]

Appl. Phys. Lett. (7)

J. S. Melinger, N. Laman, S. S. Harsha, and D. Grischkowsky, “Line narrowing of terahertz vibrational modes for organic thin polycrystalline films within a parallel plate waveguide,” Appl. Phys. Lett.89(25), 251110 (2006).
[CrossRef]

G. Klatt, B. Surrer, D. Stephan, O. Schubert, M. Fischer, J. Faist, A. Leitenstorfer, R. Huber, and T. Dekorsy, “Photo-Dember terahertz emitter excited with an Er:fiber laser,” Appl. Phys. Lett.98(2), 021114 (2011).
[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. Coleman and D. Grischkowsky, “Parallel plate THz transmitter,” Appl. Phys. Lett.84(5), 654–656 (2004).
[CrossRef]

J. R. Knab, A. J. L. Adam, R. Chakkittakandy, and P. C. M. Planken, “Terahertz near-field microspectroscopy,” Appl. Phys. Lett.97(3), 031115 (2010).
[CrossRef]

Q. Wu and X.-C. Zhang, “Free-space electro-optic sampling of terahertz beams,” Appl. Phys. Lett.67(24), 3523–3525 (1995).
[CrossRef]

N. Laman and D. Grischkowsky, “Reduced conductivity in terahertz skin-depth layer of metals,” Appl. Phys. Lett.90(12), 122115 (2007).
[CrossRef]

J. Appl. Phys. (2)

Y. M. Yu, S. Nam, K. S. Lee, Y. D. Choi, and B. O, “Photoluminescence characteristics of ZnTe epilayers,” J. Appl. Phys.90(2), 807–812 (2001).
[CrossRef]

Y. Okada and Y. Tokumaru, “Precise determination of lattice parameter and thermal expansion coefficient of silicon between 300 and 1500 K,” J. Appl. Phys.56(2), 314–320 (1984).
[CrossRef]

J. Opt. Soc. Am. B (3)

Opt. Express (4)

Opt. Lett. (2)

Phys. Rev. (1)

T. R. Sliker and J. M. Jost, “Linear electro-optic effect and refractive indices of cubic ZnTe,” Phys. Rev.56, 130–131 (1966).

Phys. Rev. B (2)

M. Schall, M. Walther, and P. Uhd Jepsen, “Fundamental and second-order phonon processes in CdTe and ZnTe,” Phys. Rev. B64(9), 094301 (2001).
[CrossRef]

M. B. Johnston, D. M. Whittaker, A. Corchia, A. G. Davies, and E. H. Linfield, “Simulation of terahertz generation at semiconductor surfaces,” Phys. Rev. B65(16), 165301 (2002).
[CrossRef]

Phys. Rev. B Condens. Matter (2)

T. Dekorsy, H. Auer, H. J. Bakker, H. G. Roskos, and H. Kurz, “THz electromagnetic emission by coherent infrared-active phonons,” Phys. Rev. B Condens. Matter53(7), 4005–4014 (1996).
[CrossRef] [PubMed]

T. Dekorsy, T. Pfeifer, W. Kütt, and H. Kurz, “Subpicosecond carrier transport in GaAs surface-space-charge fields,” Phys. Rev. B Condens. Matter47(7), 3842–3849 (1993).
[CrossRef] [PubMed]

Rev. Sci. Instrum. (1)

A. Bartels, R. Cerna, C. Kistner, A. Thoma, F. Hudert, C. Janke, and T. Dekorsy, “Ultrafast timedomain spectroscopy based on high-speed asynchronous optical sampling,” Rev. Sci. Instrum.78(3), 035107 (2007).
[CrossRef] [PubMed]

Other (4)

Y. S. Lee, Principles of Terahertz Science and Technology (Springer Science, New York, 2009).

N. Marcuvitz, Waveguide Handbook (Peter Peregrinus, London, 1993).

R. Ochrombel, Temperaturabhängige optische, elektrooptische und piezoelektrische Untersuchungen ausgewählter azentrischer Kristalle (doctoral thesis, Cologne University, 2007).

G. Klatt, Charakterisierung neuartiger Terahertz-Emitter mittels schneller, präziser Terahertz-Spektroskopie, (doctoral thesis, Konstanz University, 2011) (in German).

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Figures (7)

Fig. 1
Fig. 1

(a) Sketch of the THz waveguide setup (top view). (b) Photograph of the PPWG, with one of the polished copper plates removed.

Fig. 2
Fig. 2

(a) THz transients for the uncoated PPWG measured from 5 K to 300 K at intervals of 50 K. (b) Corresponding Fourier transform spectra (For comparison, the dotted line is the spectrum of the Dember emitter THz pulse in a free space set-up at room temperature).

Fig. 3
Fig. 3

Sketch of Dember emitter generating THz through lateral diffusion currents. Two gold stripes (yellow) and photoresist bars (green) are shown. The excitation spot covers more than 10 of these gold stripes. A strong carrier gradient is formed at the edge of the photoresist bars due to the ambipolar diffusion of electrons (blue dots) and holes (red dots) [8]. The faster diffusion of electrons leads to the rapid build-up of a polarization parallel to the surface with preferred THz emission into forward direction.

Fig. 4
Fig. 4

THz emission (peak to peak amplitude) from Dember emitter at different temperatures with error bars.

Fig. 5
Fig. 5

(a) THz transients for the uncoated PPWG (blue curve) and one plate coated with 1,2 DCB (red curve) at 300 K. (b) Corresponding Fourier transmission spectra.

Fig. 6
Fig. 6

THz spectra of the 1,2 DCB polycrystalline film on the inner surface of the PPWG for different temperature from 40 K to 300 K.

Fig. 7
Fig. 7

Temperature dependence of the frequency of the absorption peak around 750 GHz with error bars.

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