Abstract

A compact and high quality terahertz photonic crystal switch is proposed in silicon. The switch operates based on the self-imaging principle in multi-mode photonic crystal waveguide of triangular lattice. The finite-difference time-domain method and the plane wave expansion method are used to verify and analyze the characteristics of the proposed switch. Numerical simulation results agree well with the theoretical expectation. This kind of device is potentially important for terahertz application and might be a new breakthrough to design other kinds of photonic crystal switches.

© 2006 Optical Society of America

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  1. I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
    [CrossRef]
  2. R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
    [CrossRef] [PubMed]
  3. P. H. Siegel, "Terahertz technology," IEEE Trans. Microwave Theory Tech. 50, 910-928 (2002).
    [CrossRef]
  4. H. Kurt and D. S. Citrin, "Photonic crystals for biochemical sensing in the terahertz region," Appl. Phys. Lett. 87, 041108 (2005).
    [CrossRef]
  5. K. L. Nguyen, M. L. Johns, L. Gladden, C. H. Worrall, P. Alexander, H. E. Beere, M. Pepper, D. A. Ritchie, J. Alton, S. Barbieri, and E. H. Linfield, "Three-dimensional imaging with a terahertz quantum cascade laser," Opt. Express 14, 2123-2129 (2006).
    [CrossRef] [PubMed]
  6. B. Ferguson, S. Wang, D. Gray, D. Abbot, and X. C. Zhang, "T-ray computed tomography," Opt. Lett. 27, 1312-1314 (2002).
    [CrossRef]
  7. D. Dragoman and M. Dragoman, "Terahertz fields and applications," Prog. Quantum Electron. 28, 1-66 (2004).
    [CrossRef]
  8. N. Jukam and M. S. Sherwin, "Two-dimensional terahertz photonic crystals fabricated by deep reactive ion etching in Si," Appl. Phys. Lett. 83, 21-23 (2003).
    [CrossRef]
  9. T. D. Drysdale, R. J. Blaikie, and D. R. S. Cumming, "Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies," Appl. Phys. Lett. 83, 5362-5364 (2003).
    [CrossRef]
  10. C. Lin, C. Chen, G. J. Schneider, P. Yao, S. Shi, A. Sharkawy, and D. W. Prather, "Wavelength scale terahertz two-dimensional photonic crystal waveguides," Opt. Express 12, 5723-5728 (2004).
    [CrossRef] [PubMed]
  11. A. Bingham, Y. Zhao, and D. Grischkowsky, "THz parallel plate photonic waveguides," Appl. Phys. Lett. 87, 051101 (2005).
    [CrossRef]
  12. Y. Zhang, Z. Li, B. Li, "Multimode interference effect and self-imaging principle in two-dimensional silicon photonic crystal waveguides for terahertz waves," Opt. Express 14, 2679-2689 (2006).
    [CrossRef] [PubMed]
  13. I. Park, H. S. Lee, H. J. Kim, K. M. Moon, S. G. Lee, B. H. O, S. G. Park, and E. H. Lee, "Photonic crystal power-splitter based on directional coupling," Opt. Express 12, 3599-3604 (2004).
    [CrossRef] [PubMed]
  14. T. Liu, A. R. Zakharian, M. Fallahi, J. V. Moloney, and M. Mansuripur, "Multi-mode interference-based photonic crystal waveguide power splitter," J. Lightwave Technol. 22, 2842-2846 (2004).
    [CrossRef]
  15. F. Cuesta-Soto, A. Martinez, J. Garcia, F. Ramos, P. Sanchis, J. Blasco, and J. Martí, "All-optical switching structure based on photonic crystal directional coupler," Opt. Express 12, 161-167 (2003).
    [CrossRef]
  16. A. Locatelli, D. Modotto, D. Paloschi, and C. D. Angelis, "All optical switching in ultrashort photonic crystal couplers," Opt. Commun. 237, 97-102 (2004).
    [CrossRef]
  17. Z. Li, Z. Chen, and B. Li, "Optical pulse controlled all-optical logic gates in SiGe/Si multi-mode interference," Opt. Express 13, 1033-1038 (2005).
    [CrossRef] [PubMed]
  18. S. Nagai, G. Morishima, H. Inayoshi, and K. Utaka, "Multi-mode interference photonic switches (MIPS)," J. Lightwave Technol. 20, 675-681 (2002).
    [CrossRef]
  19. H. J. Kim, I. Park, B. H. O, S. G. Park, E. H. Lee, and S. G. Lee, "Self-imaging phenomena in multi-mode photonic crystal line-defect waveguides: application to wavelength de-multiplexing," Opt. Express 12, 5625-5633 (2004).
    [CrossRef] [PubMed]
  20. S. G. Johnson and J. D. Joannopoulos, "Block-iterative frequency-domain methods for Maxwell’s equations in a planewave basis," Opt. Express 8, 173-190 (2001).
    [CrossRef] [PubMed]
  21. M. Qu, "Effective index method for heterostructure-slab-waveguide-based two-dimensional photonic crystals," Appl. Phys. Lett. 81, 1163-1165 (2002).
    [CrossRef]
  22. L. B. Soldano and E. C. M. Pennings, "Optical multi-mode interference devices based on self-imaging: principles and applications," J. Lightwave Technol. 13, 615-627 (1995).
    [CrossRef]

2006 (2)

2005 (3)

A. Bingham, Y. Zhao, and D. Grischkowsky, "THz parallel plate photonic waveguides," Appl. Phys. Lett. 87, 051101 (2005).
[CrossRef]

Z. Li, Z. Chen, and B. Li, "Optical pulse controlled all-optical logic gates in SiGe/Si multi-mode interference," Opt. Express 13, 1033-1038 (2005).
[CrossRef] [PubMed]

H. Kurt and D. S. Citrin, "Photonic crystals for biochemical sensing in the terahertz region," Appl. Phys. Lett. 87, 041108 (2005).
[CrossRef]

2004 (6)

2003 (3)

F. Cuesta-Soto, A. Martinez, J. Garcia, F. Ramos, P. Sanchis, J. Blasco, and J. Martí, "All-optical switching structure based on photonic crystal directional coupler," Opt. Express 12, 161-167 (2003).
[CrossRef]

N. Jukam and M. S. Sherwin, "Two-dimensional terahertz photonic crystals fabricated by deep reactive ion etching in Si," Appl. Phys. Lett. 83, 21-23 (2003).
[CrossRef]

T. D. Drysdale, R. J. Blaikie, and D. R. S. Cumming, "Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies," Appl. Phys. Lett. 83, 5362-5364 (2003).
[CrossRef]

2002 (5)

B. Ferguson, S. Wang, D. Gray, D. Abbot, and X. C. Zhang, "T-ray computed tomography," Opt. Lett. 27, 1312-1314 (2002).
[CrossRef]

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

P. H. Siegel, "Terahertz technology," IEEE Trans. Microwave Theory Tech. 50, 910-928 (2002).
[CrossRef]

S. Nagai, G. Morishima, H. Inayoshi, and K. Utaka, "Multi-mode interference photonic switches (MIPS)," J. Lightwave Technol. 20, 675-681 (2002).
[CrossRef]

M. Qu, "Effective index method for heterostructure-slab-waveguide-based two-dimensional photonic crystals," Appl. Phys. Lett. 81, 1163-1165 (2002).
[CrossRef]

2001 (2)

S. G. Johnson and J. D. Joannopoulos, "Block-iterative frequency-domain methods for Maxwell’s equations in a planewave basis," Opt. Express 8, 173-190 (2001).
[CrossRef] [PubMed]

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

1995 (1)

L. B. Soldano and E. C. M. Pennings, "Optical multi-mode interference devices based on self-imaging: principles and applications," J. Lightwave Technol. 13, 615-627 (1995).
[CrossRef]

Abbot, D.

Alexander, P.

Alton, J.

Altukhov, I. V.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Angelis, C. D.

A. Locatelli, D. Modotto, D. Paloschi, and C. D. Angelis, "All optical switching in ultrashort photonic crystal couplers," Opt. Commun. 237, 97-102 (2004).
[CrossRef]

Barbieri, S.

Beere, H. E.

K. L. Nguyen, M. L. Johns, L. Gladden, C. H. Worrall, P. Alexander, H. E. Beere, M. Pepper, D. A. Ritchie, J. Alton, S. Barbieri, and E. H. Linfield, "Three-dimensional imaging with a terahertz quantum cascade laser," Opt. Express 14, 2123-2129 (2006).
[CrossRef] [PubMed]

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Beltram, F.

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Bingham, A.

A. Bingham, Y. Zhao, and D. Grischkowsky, "THz parallel plate photonic waveguides," Appl. Phys. Lett. 87, 051101 (2005).
[CrossRef]

Blaikie, R. J.

T. D. Drysdale, R. J. Blaikie, and D. R. S. Cumming, "Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies," Appl. Phys. Lett. 83, 5362-5364 (2003).
[CrossRef]

Blasco, J.

Chen, C.

Chen, Z.

Chirkova, E. G.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Citrin, D. S.

H. Kurt and D. S. Citrin, "Photonic crystals for biochemical sensing in the terahertz region," Appl. Phys. Lett. 87, 041108 (2005).
[CrossRef]

Cuesta-Soto, F.

Cumming, D. R. S.

T. D. Drysdale, R. J. Blaikie, and D. R. S. Cumming, "Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies," Appl. Phys. Lett. 83, 5362-5364 (2003).
[CrossRef]

Davies, A. G.

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Dragoman, D.

D. Dragoman and M. Dragoman, "Terahertz fields and applications," Prog. Quantum Electron. 28, 1-66 (2004).
[CrossRef]

Dragoman, M.

D. Dragoman and M. Dragoman, "Terahertz fields and applications," Prog. Quantum Electron. 28, 1-66 (2004).
[CrossRef]

Drysdale, T. D.

T. D. Drysdale, R. J. Blaikie, and D. R. S. Cumming, "Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies," Appl. Phys. Lett. 83, 5362-5364 (2003).
[CrossRef]

Fallahi, M.

Ferguson, B.

Garcia, J.

Gladden, L.

Gousev, Y. P.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Gray, D.

Grischkowsky, D.

A. Bingham, Y. Zhao, and D. Grischkowsky, "THz parallel plate photonic waveguides," Appl. Phys. Lett. 87, 051101 (2005).
[CrossRef]

Inayoshi, H.

Iotti, R. C.

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Joannopoulos, J. D.

Johns, M. L.

Johnson, S. G.

Jukam, N.

N. Jukam and M. S. Sherwin, "Two-dimensional terahertz photonic crystals fabricated by deep reactive ion etching in Si," Appl. Phys. Lett. 83, 21-23 (2003).
[CrossRef]

Kagan, M. S.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Kim, H. J.

Kohler, R.

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Kurt, H.

H. Kurt and D. S. Citrin, "Photonic crystals for biochemical sensing in the terahertz region," Appl. Phys. Lett. 87, 041108 (2005).
[CrossRef]

Lee, H. S.

Lee, S. G.

Li, B.

Li, Z.

Lin, C.

Linfield, E. H.

K. L. Nguyen, M. L. Johns, L. Gladden, C. H. Worrall, P. Alexander, H. E. Beere, M. Pepper, D. A. Ritchie, J. Alton, S. Barbieri, and E. H. Linfield, "Three-dimensional imaging with a terahertz quantum cascade laser," Opt. Express 14, 2123-2129 (2006).
[CrossRef] [PubMed]

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Liu, T.

Locatelli, A.

A. Locatelli, D. Modotto, D. Paloschi, and C. D. Angelis, "All optical switching in ultrashort photonic crystal couplers," Opt. Commun. 237, 97-102 (2004).
[CrossRef]

Mansuripur, M.

Martí, J.

Martinez, A.

Modotto, D.

A. Locatelli, D. Modotto, D. Paloschi, and C. D. Angelis, "All optical switching in ultrashort photonic crystal couplers," Opt. Commun. 237, 97-102 (2004).
[CrossRef]

Moloney, J. V.

Moon, K. M.

Morishima, G.

Nagai, S.

Nguyen, K. L.

Odnoblyudov, M. A.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Paloschi, D.

A. Locatelli, D. Modotto, D. Paloschi, and C. D. Angelis, "All optical switching in ultrashort photonic crystal couplers," Opt. Commun. 237, 97-102 (2004).
[CrossRef]

Park, I.

Pennings, E. C. M.

L. B. Soldano and E. C. M. Pennings, "Optical multi-mode interference devices based on self-imaging: principles and applications," J. Lightwave Technol. 13, 615-627 (1995).
[CrossRef]

Pepper, M.

Prather, D. W.

Qu, M.

M. Qu, "Effective index method for heterostructure-slab-waveguide-based two-dimensional photonic crystals," Appl. Phys. Lett. 81, 1163-1165 (2002).
[CrossRef]

Ramos, F.

Ritchie, D. A.

K. L. Nguyen, M. L. Johns, L. Gladden, C. H. Worrall, P. Alexander, H. E. Beere, M. Pepper, D. A. Ritchie, J. Alton, S. Barbieri, and E. H. Linfield, "Three-dimensional imaging with a terahertz quantum cascade laser," Opt. Express 14, 2123-2129 (2006).
[CrossRef] [PubMed]

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Rossi, F.

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Sanchis, P.

Schneider, G. J.

Sharkawy, A.

Sherwin, M. S.

N. Jukam and M. S. Sherwin, "Two-dimensional terahertz photonic crystals fabricated by deep reactive ion etching in Si," Appl. Phys. Lett. 83, 21-23 (2003).
[CrossRef]

Shi, S.

Siegel, P. H.

P. H. Siegel, "Terahertz technology," IEEE Trans. Microwave Theory Tech. 50, 910-928 (2002).
[CrossRef]

Sinis, V. P.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Soldano, L. B.

L. B. Soldano and E. C. M. Pennings, "Optical multi-mode interference devices based on self-imaging: principles and applications," J. Lightwave Technol. 13, 615-627 (1995).
[CrossRef]

Thomas, S. G.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Tredicucci, A.

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Utaka, K.

Wang, K. L.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Wang, S.

Worrall, C. H.

Yao, P.

Yassievich, I. N.

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

Zakharian, A. R.

Zhang, X. C.

Zhang, Y.

Zhao, Y.

A. Bingham, Y. Zhao, and D. Grischkowsky, "THz parallel plate photonic waveguides," Appl. Phys. Lett. 87, 051101 (2005).
[CrossRef]

Appl. Phys. Lett. (6)

H. Kurt and D. S. Citrin, "Photonic crystals for biochemical sensing in the terahertz region," Appl. Phys. Lett. 87, 041108 (2005).
[CrossRef]

I. V. Altukhov, E. G. Chirkova, V. P. Sinis, M. S. Kagan, Y. P. Gousev, S. G. Thomas, K. L. Wang, M. A. Odnoblyudov, and I. N. Yassievich, "Towards Si1-xGex quantum-well resonant-state terahertz laser," Appl. Phys. Lett. 79, 3909-3911 (2001).
[CrossRef]

N. Jukam and M. S. Sherwin, "Two-dimensional terahertz photonic crystals fabricated by deep reactive ion etching in Si," Appl. Phys. Lett. 83, 21-23 (2003).
[CrossRef]

T. D. Drysdale, R. J. Blaikie, and D. R. S. Cumming, "Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies," Appl. Phys. Lett. 83, 5362-5364 (2003).
[CrossRef]

A. Bingham, Y. Zhao, and D. Grischkowsky, "THz parallel plate photonic waveguides," Appl. Phys. Lett. 87, 051101 (2005).
[CrossRef]

M. Qu, "Effective index method for heterostructure-slab-waveguide-based two-dimensional photonic crystals," Appl. Phys. Lett. 81, 1163-1165 (2002).
[CrossRef]

IEEE Trans. Microwave Theory Tech. (1)

P. H. Siegel, "Terahertz technology," IEEE Trans. Microwave Theory Tech. 50, 910-928 (2002).
[CrossRef]

J. Lightwave Technol. (3)

Nature (1)

R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti, and F. Rossi, "Terahertz semiconductor-heterostructure laser," Nature 417, 156-159 (2002).
[CrossRef] [PubMed]

Opt. Commun. (1)

A. Locatelli, D. Modotto, D. Paloschi, and C. D. Angelis, "All optical switching in ultrashort photonic crystal couplers," Opt. Commun. 237, 97-102 (2004).
[CrossRef]

Opt. Express (8)

Z. Li, Z. Chen, and B. Li, "Optical pulse controlled all-optical logic gates in SiGe/Si multi-mode interference," Opt. Express 13, 1033-1038 (2005).
[CrossRef] [PubMed]

H. J. Kim, I. Park, B. H. O, S. G. Park, E. H. Lee, and S. G. Lee, "Self-imaging phenomena in multi-mode photonic crystal line-defect waveguides: application to wavelength de-multiplexing," Opt. Express 12, 5625-5633 (2004).
[CrossRef] [PubMed]

S. G. Johnson and J. D. Joannopoulos, "Block-iterative frequency-domain methods for Maxwell’s equations in a planewave basis," Opt. Express 8, 173-190 (2001).
[CrossRef] [PubMed]

F. Cuesta-Soto, A. Martinez, J. Garcia, F. Ramos, P. Sanchis, J. Blasco, and J. Martí, "All-optical switching structure based on photonic crystal directional coupler," Opt. Express 12, 161-167 (2003).
[CrossRef]

Y. Zhang, Z. Li, B. Li, "Multimode interference effect and self-imaging principle in two-dimensional silicon photonic crystal waveguides for terahertz waves," Opt. Express 14, 2679-2689 (2006).
[CrossRef] [PubMed]

I. Park, H. S. Lee, H. J. Kim, K. M. Moon, S. G. Lee, B. H. O, S. G. Park, and E. H. Lee, "Photonic crystal power-splitter based on directional coupling," Opt. Express 12, 3599-3604 (2004).
[CrossRef] [PubMed]

C. Lin, C. Chen, G. J. Schneider, P. Yao, S. Shi, A. Sharkawy, and D. W. Prather, "Wavelength scale terahertz two-dimensional photonic crystal waveguides," Opt. Express 12, 5723-5728 (2004).
[CrossRef] [PubMed]

K. L. Nguyen, M. L. Johns, L. Gladden, C. H. Worrall, P. Alexander, H. E. Beere, M. Pepper, D. A. Ritchie, J. Alton, S. Barbieri, and E. H. Linfield, "Three-dimensional imaging with a terahertz quantum cascade laser," Opt. Express 14, 2123-2129 (2006).
[CrossRef] [PubMed]

Opt. Lett. (1)

Prog. Quantum Electron. (1)

D. Dragoman and M. Dragoman, "Terahertz fields and applications," Prog. Quantum Electron. 28, 1-66 (2004).
[CrossRef]

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Figures (6)

Fig. 1.
Fig. 1.

Multi-mode photonic crystal waveguide structure for terahertz waves.

Fig. 2.
Fig. 2.

Band diagram of the THz PC switch for TE mode.

Fig. 3.
Fig. 3.

(a) Dispersion curves for the input/output waveguides (PCW1) and the computational super cell (on the right side), (b) Dispersion curves for the MMI region (PCW2) and the computational super cell (on the right side).

Fig. 4.
Fig. 4.

Inclined MMI region.

Fig. 5.
Fig. 5.

Schematic diagram of the THz PC switch.

Fig. 6.
Fig. 6.

Steady-state magnetic field distribution of the switch: (a) BAR state, (b) CROSS state.

Tables (3)

Tables Icon

Table 1. Mode properties of the PCW2 in Fig. 3(b) at a specified frequency

Tables Icon

Table 2. Relation of the input phase differences (Δφ in) and the output wave amplitudes (A 3 and A 4)

Tables Icon

Table 3. Normalized output powers in W3 and W4

Equations (2)

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L π = π ( β 0 β 1 )
A = 2 A 0 cos ( Δ φ 2 )

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