Abstract

We demonstrated a structure with periodic cylinders arranged bilaterally and a thin dielectric layer covered inside that supports bound modes of surface plasmon polaritons at terahertz frequencies. This structure can confine the surface plasmon polaritons in the lateral direction, and at the same time reduce the field expansion into space. We examined and explored the characteristics of several different structures using scanning near-field terahertz microscopy. The proposed designs pave a novel way to terahertz waveguiding and may have important applications in the development of flexible, wideband and compact photonic circuits operating at terahertz frequencies.

© 2017 Optical Society of America

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References

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  1. Z. Han and S. I. Bozhevolnyi, “Radiation guiding with surface plasmon polaritons,” Rep. Prog. Phys. 76(1), 016402 (2013).
    [Crossref] [PubMed]
  2. T. W. Ebbesen, C. Genet, and S. I. Bozhevolnyi, “Surface-plasmon circuitry,” Phys. Today 61(5), 44–50 (2008).
    [Crossref]
  3. C. P. Huang and Y. Y. Zhu, “Plasmonics: manipulating light at the subwavelength scale,” Active Passive Electron. Components 2007, 30946 (2007).
    [Crossref]
  4. B. You, J. Y. Lu, T. A. Liu, and J. L. Peng, “Hybrid terahertz plasmonic waveguide for sensing applications,” Opt. Express 21(18), 21087–21096 (2013).
    [Crossref] [PubMed]
  5. X. Zhang and Z. Liu, “Superlenses to overcome the diffraction limit,” Nat. Mater. 7(6), 435–441 (2008).
    [Crossref] [PubMed]
  6. C. Genet and T. W. Ebbesen, “Light in tiny holes,” Nature 445(7123), 39–46 (2007).
    [Crossref] [PubMed]
  7. Q. Gan, Z. Fu, Y. J. Ding, and F. J. Bartoli, “Ultrawide-bandwidth slow-light system based on THz plasmonic graded metallic grating structures,” Phys. Rev. Lett. 100(25), 256803 (2008).
    [Crossref] [PubMed]
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    [Crossref] [PubMed]
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    [Crossref]
  10. S. I. Bozhevolnyi, V. S. Volkov, E. Devaux, J. Y. Laluet, and T. W. Ebbesen, “Channel plasmon subwavelength waveguide components including interferometers and ring resonators,” Nature 440(7083), 508–511 (2006).
    [Crossref] [PubMed]
  11. A. Boltasseva, T. Nikolajsen, K. Leosson, K. Kjaer, M. S. Larsen, and S. I. Bozhevolnyi, “Integrated optical components utilizing long-range surface plasmon polaritons,” J. Lightwave Technol. 23(1), 413–422 (2005).
    [Crossref]
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    [Crossref] [PubMed]
  13. Q. Yang, X. Zhang, S. Li, Q. Xu, R. Singh, Y. Liu, Y. Li, S. S. Kruk, J. Gu, J. Han, and W. Zhang, “Near-field surface plasmons on quasicrystal metasurfaces,” Sci. Rep. 6(1), 26 (2016).
    [Crossref]
  14. T. Jeon and D. Grischkowsky, “THz Zenneck surface wave (THz surface plasmon) propagation on a metal sheet,” Appl. Phys. Lett. 88(6), 061113 (2006).
    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref]
  17. L. Shen, X. Chen, and T. J. Yang, “Terahertz surface plasmon polaritons on periodically corrugated metal surfaces,” Opt. Express 16(5), 3326–3333 (2008).
    [Crossref] [PubMed]
  18. M. Gong, T. I. Jeon, and D. Grischkowsky, “THz surface wave collapse on coated metal surfaces,” Opt. Express 17(19), 17088–17101 (2009).
    [Crossref] [PubMed]
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    [Crossref]
  20. X. Wan, Y. B. Li, B. G. Cai, and T. J. Cui, “Simultaneous controls of surface waves and propagating waves by metasurfaces,” Appl. Phys. Lett. 105(12), 121603 (2014).
    [Crossref]
  21. J. B. Pendry, L. Martín-Moreno, and F. J. Garcia-Vidal, “Mimicking surface plasmons with structured surfaces,” Science 305(5685), 847–848 (2004).
    [Crossref] [PubMed]
  22. Z. Gao, L. Shen, J. Wu, T. Yang, and X. Zheng, “Terahertz surface plasmon polaritons in textured metal surfaces formed by square arrays of metallic pillars,” Opt. Commun. 285(8), 2076–2080 (2012).
    [Crossref]
  23. G. Kumar, S. Li, M. M. Jadidi, and T. E. Murphy, “Terahertz surface plasmon waveguide based on a one-dimensional array of silicon pillars,” New J. Phys. 15(8), 85031 (2013).
    [Crossref]
  24. S. A. Maier and S. R. Andrews, “Terahertz pulse propagation using plasmon-polariton-like surface modes on structured conductive surfaces,” Appl. Phys. Lett. 88(25), 251120 (2006).
    [Crossref]
  25. B. You, C. C. Peng, J. S. Jhang, H. H. Chen, C. P. Yu, W. C. Lai, T. A. Liu, J. L. Peng, and J. Y. Lu, “Terahertz plasmonic waveguide based on metal rod arrays for nanofilm sensing,” Opt. Express 22(9), 11340–11350 (2014).
    [Crossref] [PubMed]
  26. T. Holmgaard, Z. Chen, S. I. Bozhevolnyi, L. Markey, A. Dereux, A. V. Krasavin, and A. V. Zayats, “Bend- and splitting loss of dielectric-loaded surface plasmon-polariton waveguides,” Opt. Express 16(18), 13585–13592 (2008).
    [Crossref] [PubMed]
  27. A. Kumar and S. Aditya, “Performance of S-bends for integrated-optic waveguides,” Microw. Opt. Technol. Lett. 19(4), 289–292 (1988).
    [Crossref]

2016 (2)

X. Zhang, Q. Xu, Q. Li, Y. Xu, J. Gu, Z. Tian, C. Ouyang, Y. Liu, S. Zhang, X. Zhang, J. Han, and W. Zhang, “Asymmetric excitation of surface plasmons by dark mode coupling,” Sci. Adv. 2(2), e1501142 (2016).
[Crossref] [PubMed]

Q. Yang, X. Zhang, S. Li, Q. Xu, R. Singh, Y. Liu, Y. Li, S. S. Kruk, J. Gu, J. Han, and W. Zhang, “Near-field surface plasmons on quasicrystal metasurfaces,” Sci. Rep. 6(1), 26 (2016).
[Crossref]

2014 (2)

2013 (4)

G. Kumar, S. Li, M. M. Jadidi, and T. E. Murphy, “Terahertz surface plasmon waveguide based on a one-dimensional array of silicon pillars,” New J. Phys. 15(8), 85031 (2013).
[Crossref]

B. You, J. Y. Lu, W. L. Chang, C. P. Yu, T. A. Liu, and J. L. Peng, “Subwavelength confined terahertz waves on planar waveguides using metallic gratings,” Opt. Express 21(5), 6009–6019 (2013).
[Crossref] [PubMed]

Z. Han and S. I. Bozhevolnyi, “Radiation guiding with surface plasmon polaritons,” Rep. Prog. Phys. 76(1), 016402 (2013).
[Crossref] [PubMed]

B. You, J. Y. Lu, T. A. Liu, and J. L. Peng, “Hybrid terahertz plasmonic waveguide for sensing applications,” Opt. Express 21(18), 21087–21096 (2013).
[Crossref] [PubMed]

2012 (1)

Z. Gao, L. Shen, J. Wu, T. Yang, and X. Zheng, “Terahertz surface plasmon polaritons in textured metal surfaces formed by square arrays of metallic pillars,” Opt. Commun. 285(8), 2076–2080 (2012).
[Crossref]

2009 (1)

2008 (6)

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, “Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces,” Nat. Photonics 2(3), 175–179 (2008).
[Crossref]

L. Shen, X. Chen, and T. J. Yang, “Terahertz surface plasmon polaritons on periodically corrugated metal surfaces,” Opt. Express 16(5), 3326–3333 (2008).
[Crossref] [PubMed]

X. Zhang and Z. Liu, “Superlenses to overcome the diffraction limit,” Nat. Mater. 7(6), 435–441 (2008).
[Crossref] [PubMed]

T. W. Ebbesen, C. Genet, and S. I. Bozhevolnyi, “Surface-plasmon circuitry,” Phys. Today 61(5), 44–50 (2008).
[Crossref]

Q. Gan, Z. Fu, Y. J. Ding, and F. J. Bartoli, “Ultrawide-bandwidth slow-light system based on THz plasmonic graded metallic grating structures,” Phys. Rev. Lett. 100(25), 256803 (2008).
[Crossref] [PubMed]

T. Holmgaard, Z. Chen, S. I. Bozhevolnyi, L. Markey, A. Dereux, A. V. Krasavin, and A. V. Zayats, “Bend- and splitting loss of dielectric-loaded surface plasmon-polariton waveguides,” Opt. Express 16(18), 13585–13592 (2008).
[Crossref] [PubMed]

2007 (4)

T. Holmgaard and S. I. Bozhevolnyi, “Theoretical analysis of dielectric-loaded surface plasmon-polariton waveguides,” Phys. Rev. B 75(24), 245405 (2007).
[Crossref]

C. P. Huang and Y. Y. Zhu, “Plasmonics: manipulating light at the subwavelength scale,” Active Passive Electron. Components 2007, 30946 (2007).
[Crossref]

C. Genet and T. W. Ebbesen, “Light in tiny holes,” Nature 445(7123), 39–46 (2007).
[Crossref] [PubMed]

Z. Ruan and M. Qiu, “Slow electromagnetic wave guided in subwavelength region along one-dimensional periodically structured metal surface,” Appl. Phys. Lett. 90(20), 201906 (2007).
[Crossref]

2006 (3)

T. Jeon and D. Grischkowsky, “THz Zenneck surface wave (THz surface plasmon) propagation on a metal sheet,” Appl. Phys. Lett. 88(6), 061113 (2006).
[Crossref]

S. I. Bozhevolnyi, V. S. Volkov, E. Devaux, J. Y. Laluet, and T. W. Ebbesen, “Channel plasmon subwavelength waveguide components including interferometers and ring resonators,” Nature 440(7083), 508–511 (2006).
[Crossref] [PubMed]

S. A. Maier and S. R. Andrews, “Terahertz pulse propagation using plasmon-polariton-like surface modes on structured conductive surfaces,” Appl. Phys. Lett. 88(25), 251120 (2006).
[Crossref]

2005 (2)

2004 (1)

J. B. Pendry, L. Martín-Moreno, and F. J. Garcia-Vidal, “Mimicking surface plasmons with structured surfaces,” Science 305(5685), 847–848 (2004).
[Crossref] [PubMed]

1988 (1)

A. Kumar and S. Aditya, “Performance of S-bends for integrated-optic waveguides,” Microw. Opt. Technol. Lett. 19(4), 289–292 (1988).
[Crossref]

Aditya, S.

A. Kumar and S. Aditya, “Performance of S-bends for integrated-optic waveguides,” Microw. Opt. Technol. Lett. 19(4), 289–292 (1988).
[Crossref]

Andrews, S. R.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, “Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces,” Nat. Photonics 2(3), 175–179 (2008).
[Crossref]

S. A. Maier and S. R. Andrews, “Terahertz pulse propagation using plasmon-polariton-like surface modes on structured conductive surfaces,” Appl. Phys. Lett. 88(25), 251120 (2006).
[Crossref]

Bartoli, F. J.

Q. Gan, Z. Fu, Y. J. Ding, and F. J. Bartoli, “Ultrawide-bandwidth slow-light system based on THz plasmonic graded metallic grating structures,” Phys. Rev. Lett. 100(25), 256803 (2008).
[Crossref] [PubMed]

Berini, P.

Boltasseva, A.

Bozhevolnyi, S. I.

Z. Han and S. I. Bozhevolnyi, “Radiation guiding with surface plasmon polaritons,” Rep. Prog. Phys. 76(1), 016402 (2013).
[Crossref] [PubMed]

T. W. Ebbesen, C. Genet, and S. I. Bozhevolnyi, “Surface-plasmon circuitry,” Phys. Today 61(5), 44–50 (2008).
[Crossref]

T. Holmgaard, Z. Chen, S. I. Bozhevolnyi, L. Markey, A. Dereux, A. V. Krasavin, and A. V. Zayats, “Bend- and splitting loss of dielectric-loaded surface plasmon-polariton waveguides,” Opt. Express 16(18), 13585–13592 (2008).
[Crossref] [PubMed]

T. Holmgaard and S. I. Bozhevolnyi, “Theoretical analysis of dielectric-loaded surface plasmon-polariton waveguides,” Phys. Rev. B 75(24), 245405 (2007).
[Crossref]

S. I. Bozhevolnyi, V. S. Volkov, E. Devaux, J. Y. Laluet, and T. W. Ebbesen, “Channel plasmon subwavelength waveguide components including interferometers and ring resonators,” Nature 440(7083), 508–511 (2006).
[Crossref] [PubMed]

A. Boltasseva, T. Nikolajsen, K. Leosson, K. Kjaer, M. S. Larsen, and S. I. Bozhevolnyi, “Integrated optical components utilizing long-range surface plasmon polaritons,” J. Lightwave Technol. 23(1), 413–422 (2005).
[Crossref]

Cai, B. G.

X. Wan, Y. B. Li, B. G. Cai, and T. J. Cui, “Simultaneous controls of surface waves and propagating waves by metasurfaces,” Appl. Phys. Lett. 105(12), 121603 (2014).
[Crossref]

Chang, W. L.

Charbonneau, R.

Chen, H. H.

Chen, X.

Chen, Z.

Cui, T. J.

X. Wan, Y. B. Li, B. G. Cai, and T. J. Cui, “Simultaneous controls of surface waves and propagating waves by metasurfaces,” Appl. Phys. Lett. 105(12), 121603 (2014).
[Crossref]

Dereux, A.

Devaux, E.

S. I. Bozhevolnyi, V. S. Volkov, E. Devaux, J. Y. Laluet, and T. W. Ebbesen, “Channel plasmon subwavelength waveguide components including interferometers and ring resonators,” Nature 440(7083), 508–511 (2006).
[Crossref] [PubMed]

Ding, Y. J.

Q. Gan, Z. Fu, Y. J. Ding, and F. J. Bartoli, “Ultrawide-bandwidth slow-light system based on THz plasmonic graded metallic grating structures,” Phys. Rev. Lett. 100(25), 256803 (2008).
[Crossref] [PubMed]

Ebbesen, T. W.

T. W. Ebbesen, C. Genet, and S. I. Bozhevolnyi, “Surface-plasmon circuitry,” Phys. Today 61(5), 44–50 (2008).
[Crossref]

C. Genet and T. W. Ebbesen, “Light in tiny holes,” Nature 445(7123), 39–46 (2007).
[Crossref] [PubMed]

S. I. Bozhevolnyi, V. S. Volkov, E. Devaux, J. Y. Laluet, and T. W. Ebbesen, “Channel plasmon subwavelength waveguide components including interferometers and ring resonators,” Nature 440(7083), 508–511 (2006).
[Crossref] [PubMed]

Fernández-Domínguez, A. I.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, “Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces,” Nat. Photonics 2(3), 175–179 (2008).
[Crossref]

Fu, Z.

Q. Gan, Z. Fu, Y. J. Ding, and F. J. Bartoli, “Ultrawide-bandwidth slow-light system based on THz plasmonic graded metallic grating structures,” Phys. Rev. Lett. 100(25), 256803 (2008).
[Crossref] [PubMed]

Gan, Q.

Q. Gan, Z. Fu, Y. J. Ding, and F. J. Bartoli, “Ultrawide-bandwidth slow-light system based on THz plasmonic graded metallic grating structures,” Phys. Rev. Lett. 100(25), 256803 (2008).
[Crossref] [PubMed]

Gao, Z.

Z. Gao, L. Shen, J. Wu, T. Yang, and X. Zheng, “Terahertz surface plasmon polaritons in textured metal surfaces formed by square arrays of metallic pillars,” Opt. Commun. 285(8), 2076–2080 (2012).
[Crossref]

Garcia-Vidal, F. J.

J. B. Pendry, L. Martín-Moreno, and F. J. Garcia-Vidal, “Mimicking surface plasmons with structured surfaces,” Science 305(5685), 847–848 (2004).
[Crossref] [PubMed]

García-Vidal, F. J.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, “Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces,” Nat. Photonics 2(3), 175–179 (2008).
[Crossref]

Genet, C.

T. W. Ebbesen, C. Genet, and S. I. Bozhevolnyi, “Surface-plasmon circuitry,” Phys. Today 61(5), 44–50 (2008).
[Crossref]

C. Genet and T. W. Ebbesen, “Light in tiny holes,” Nature 445(7123), 39–46 (2007).
[Crossref] [PubMed]

Gong, M.

Grischkowsky, D.

M. Gong, T. I. Jeon, and D. Grischkowsky, “THz surface wave collapse on coated metal surfaces,” Opt. Express 17(19), 17088–17101 (2009).
[Crossref] [PubMed]

T. Jeon and D. Grischkowsky, “THz Zenneck surface wave (THz surface plasmon) propagation on a metal sheet,” Appl. Phys. Lett. 88(6), 061113 (2006).
[Crossref]

Gu, J.

Q. Yang, X. Zhang, S. Li, Q. Xu, R. Singh, Y. Liu, Y. Li, S. S. Kruk, J. Gu, J. Han, and W. Zhang, “Near-field surface plasmons on quasicrystal metasurfaces,” Sci. Rep. 6(1), 26 (2016).
[Crossref]

X. Zhang, Q. Xu, Q. Li, Y. Xu, J. Gu, Z. Tian, C. Ouyang, Y. Liu, S. Zhang, X. Zhang, J. Han, and W. Zhang, “Asymmetric excitation of surface plasmons by dark mode coupling,” Sci. Adv. 2(2), e1501142 (2016).
[Crossref] [PubMed]

Han, J.

X. Zhang, Q. Xu, Q. Li, Y. Xu, J. Gu, Z. Tian, C. Ouyang, Y. Liu, S. Zhang, X. Zhang, J. Han, and W. Zhang, “Asymmetric excitation of surface plasmons by dark mode coupling,” Sci. Adv. 2(2), e1501142 (2016).
[Crossref] [PubMed]

Q. Yang, X. Zhang, S. Li, Q. Xu, R. Singh, Y. Liu, Y. Li, S. S. Kruk, J. Gu, J. Han, and W. Zhang, “Near-field surface plasmons on quasicrystal metasurfaces,” Sci. Rep. 6(1), 26 (2016).
[Crossref]

Han, Z.

Z. Han and S. I. Bozhevolnyi, “Radiation guiding with surface plasmon polaritons,” Rep. Prog. Phys. 76(1), 016402 (2013).
[Crossref] [PubMed]

Holmgaard, T.

Huang, C. P.

C. P. Huang and Y. Y. Zhu, “Plasmonics: manipulating light at the subwavelength scale,” Active Passive Electron. Components 2007, 30946 (2007).
[Crossref]

Jadidi, M. M.

G. Kumar, S. Li, M. M. Jadidi, and T. E. Murphy, “Terahertz surface plasmon waveguide based on a one-dimensional array of silicon pillars,” New J. Phys. 15(8), 85031 (2013).
[Crossref]

Jeon, T.

T. Jeon and D. Grischkowsky, “THz Zenneck surface wave (THz surface plasmon) propagation on a metal sheet,” Appl. Phys. Lett. 88(6), 061113 (2006).
[Crossref]

Jeon, T. I.

Jhang, J. S.

Kjaer, K.

Krasavin, A. V.

Kruk, S. S.

Q. Yang, X. Zhang, S. Li, Q. Xu, R. Singh, Y. Liu, Y. Li, S. S. Kruk, J. Gu, J. Han, and W. Zhang, “Near-field surface plasmons on quasicrystal metasurfaces,” Sci. Rep. 6(1), 26 (2016).
[Crossref]

Kumar, A.

A. Kumar and S. Aditya, “Performance of S-bends for integrated-optic waveguides,” Microw. Opt. Technol. Lett. 19(4), 289–292 (1988).
[Crossref]

Kumar, G.

G. Kumar, S. Li, M. M. Jadidi, and T. E. Murphy, “Terahertz surface plasmon waveguide based on a one-dimensional array of silicon pillars,” New J. Phys. 15(8), 85031 (2013).
[Crossref]

Lahoud, N.

Lai, W. C.

Laluet, J. Y.

S. I. Bozhevolnyi, V. S. Volkov, E. Devaux, J. Y. Laluet, and T. W. Ebbesen, “Channel plasmon subwavelength waveguide components including interferometers and ring resonators,” Nature 440(7083), 508–511 (2006).
[Crossref] [PubMed]

Larsen, M. S.

Leosson, K.

Li, Q.

X. Zhang, Q. Xu, Q. Li, Y. Xu, J. Gu, Z. Tian, C. Ouyang, Y. Liu, S. Zhang, X. Zhang, J. Han, and W. Zhang, “Asymmetric excitation of surface plasmons by dark mode coupling,” Sci. Adv. 2(2), e1501142 (2016).
[Crossref] [PubMed]

Li, S.

Q. Yang, X. Zhang, S. Li, Q. Xu, R. Singh, Y. Liu, Y. Li, S. S. Kruk, J. Gu, J. Han, and W. Zhang, “Near-field surface plasmons on quasicrystal metasurfaces,” Sci. Rep. 6(1), 26 (2016).
[Crossref]

G. Kumar, S. Li, M. M. Jadidi, and T. E. Murphy, “Terahertz surface plasmon waveguide based on a one-dimensional array of silicon pillars,” New J. Phys. 15(8), 85031 (2013).
[Crossref]

Li, Y.

Q. Yang, X. Zhang, S. Li, Q. Xu, R. Singh, Y. Liu, Y. Li, S. S. Kruk, J. Gu, J. Han, and W. Zhang, “Near-field surface plasmons on quasicrystal metasurfaces,” Sci. Rep. 6(1), 26 (2016).
[Crossref]

Li, Y. B.

X. Wan, Y. B. Li, B. G. Cai, and T. J. Cui, “Simultaneous controls of surface waves and propagating waves by metasurfaces,” Appl. Phys. Lett. 105(12), 121603 (2014).
[Crossref]

Liu, T. A.

Liu, Y.

Q. Yang, X. Zhang, S. Li, Q. Xu, R. Singh, Y. Liu, Y. Li, S. S. Kruk, J. Gu, J. Han, and W. Zhang, “Near-field surface plasmons on quasicrystal metasurfaces,” Sci. Rep. 6(1), 26 (2016).
[Crossref]

X. Zhang, Q. Xu, Q. Li, Y. Xu, J. Gu, Z. Tian, C. Ouyang, Y. Liu, S. Zhang, X. Zhang, J. Han, and W. Zhang, “Asymmetric excitation of surface plasmons by dark mode coupling,” Sci. Adv. 2(2), e1501142 (2016).
[Crossref] [PubMed]

Liu, Z.

X. Zhang and Z. Liu, “Superlenses to overcome the diffraction limit,” Nat. Mater. 7(6), 435–441 (2008).
[Crossref] [PubMed]

Lu, J. Y.

Maier, S. A.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, “Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces,” Nat. Photonics 2(3), 175–179 (2008).
[Crossref]

S. A. Maier and S. R. Andrews, “Terahertz pulse propagation using plasmon-polariton-like surface modes on structured conductive surfaces,” Appl. Phys. Lett. 88(25), 251120 (2006).
[Crossref]

Markey, L.

Martín-Moreno, L.

C. R. Williams, S. R. Andrews, S. A. Maier, A. I. Fernández-Domínguez, L. Martín-Moreno, and F. J. García-Vidal, “Highly confined guiding of terahertz surface plasmon polaritons on structured metal surfaces,” Nat. Photonics 2(3), 175–179 (2008).
[Crossref]

J. B. Pendry, L. Martín-Moreno, and F. J. Garcia-Vidal, “Mimicking surface plasmons with structured surfaces,” Science 305(5685), 847–848 (2004).
[Crossref] [PubMed]

Mattiussi, G.

Murphy, T. E.

G. Kumar, S. Li, M. M. Jadidi, and T. E. Murphy, “Terahertz surface plasmon waveguide based on a one-dimensional array of silicon pillars,” New J. Phys. 15(8), 85031 (2013).
[Crossref]

Nikolajsen, T.

Ouyang, C.

X. Zhang, Q. Xu, Q. Li, Y. Xu, J. Gu, Z. Tian, C. Ouyang, Y. Liu, S. Zhang, X. Zhang, J. Han, and W. Zhang, “Asymmetric excitation of surface plasmons by dark mode coupling,” Sci. Adv. 2(2), e1501142 (2016).
[Crossref] [PubMed]

Pendry, J. B.

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Figures (6)

Fig. 1
Fig. 1 (a) Schematic of waveguide structure with geometrical parameters. (b) Dispersion properties of SPP modes with different dielectric layer thicknesses of 50, 100 and 150 μm. (c) Field distribution of magnitude of electric field component (Ez) for 100 μm-thick dielectric layer.
Fig. 2
Fig. 2 Planar structures of waveguide components. (a) Straight waveguide. (b) S bend. (c) Y splitter. (d) MZ interferometer. (e) Sharp bend with defects. (f) Sharp bend. (i)–(n) Corresponding electric field distributions of Ez at z = 50 μm.
Fig. 3
Fig. 3 Illustration of experimental setup. The inset show 2D structure of gratings.
Fig. 4
Fig. 4 (a) SEM image of straight waveguide. (b) Near-field image of straight waveguideshowing the normalized power (proportional to |Ez|2) distribution at 0.68THz. (c) Measured amplitude of electric field as a function of ycoordinate. (d) Amplitude attenuation as a function of propagation distance. Reddots represent experimental results. The red line is exponential fit. The black line with squares represents simulated results.
Fig. 5
Fig. 5 (a) SEM image of Y splitter junction. (b) Normalized power image of Y splitter at 0.68 THz. (c) Input power along the line x = 1 mm and output power along x = 2 mm.
Fig. 6
Fig. 6 (a) SEM image of sharp bend. (b) Normalized power image of sharp bend at 0.68 THz.

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