Abstract

This paper describes the investigation of the waveguide properties of a silicon-on-insulator (SOI)-based two-dimensional photonic-crystal slab. It is found that coupling between transverse-electric (TE)-like defect modes and transverse-magnetic (TM)-like slab modes occurs in some frequency range due to structural asymmetries in the vertical direction. This TE-TM coupling, together with the smaller refractive-index contrast between the slab and dielectric cladding, results in propagation losses for a line-defect waveguide in an SOI structure. The paper also presents optimization methods for obtaining a wide lossless propagation band using such a line defect.

© 2004 IEEE

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  1. E. Yablonovitch, "Inhibited spontaneous emission in solid-state physics and electronics", Phys. Rev. Lett., vol. 58, pp. 2059-2062, 1987.
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  3. S. Noda, A. Chutinan and M. Imada, "Trapping and emission of photons by a single defect in a photonic bandgap structure", Nature, vol. 407, pp. 608-610, 2001.
  4. B. S. Song, S. Noda and T. Asano, "Photonic devices based on in-plane hetero photonic crystals", Science, vol. 300, p. 1537, 2003.
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  7. A. Chutinan and S. Noda, "Waveguides and waveguide bends in two-dimensional photonic crystal slabs", Phys. Rev. B, Condens. Matter, vol. 62, pp. 4488-4492, 2000.
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  10. T. Ochiai and K. Sakoda, "Dispersion relation and optical transmittance of a hexagonal photonic crystal slab", Phys. Rev. B, Condens. Matter, vol. 63, p. 125-107, 2001.

Other (10)

E. Yablonovitch, "Inhibited spontaneous emission in solid-state physics and electronics", Phys. Rev. Lett., vol. 58, pp. 2059-2062, 1987.

S. Noda, K. Tomoda, N. Yamamoto and A. Chutinan, "Full three-dimensional photonic bandgap crystals at near-infrared wavelengths", Science, vol. 289, pp. 604-606, 2000.

S. Noda, A. Chutinan and M. Imada, "Trapping and emission of photons by a single defect in a photonic bandgap structure", Nature, vol. 407, pp. 608-610, 2001.

B. S. Song, S. Noda and T. Asano, "Photonic devices based on in-plane hetero photonic crystals", Science, vol. 300, p. 1537, 2003.

M. Notomi, A. Shinya, K. Yamada, J. Takahashi, C. Takahashi and I. Yokohama, "Structural tuning of guiding modes of line-defect waveguides of silicon-on-insulator photonic crystal slabs", IEEE J. Quantum Electron., vol. 38, pp. 736-742, July 2002.

Y. Tanaka, T. Asano, Y. Akahane, B. S. Song and S. Noda, "Theoretical investigation of a two-dimensional photonic crystal slab with truncated cone air holes", Appl. Phys. Lett. , vol. 82, pp. 1661-1663, 2003.

A. Chutinan and S. Noda, "Waveguides and waveguide bends in two-dimensional photonic crystal slabs", Phys. Rev. B, Condens. Matter, vol. 62, pp. 4488-4492, 2000.

K. S. Yee, "Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media", IEEE Trans. Antennas Propagat., vol. 14, pp. 302-307, May 1966.

J. P. Berenger, "A perfectly matched layer for the absorption of electromagnetic waves", J. Comput. Phys., vol. 114, pp. 185-200, 1994.

T. Ochiai and K. Sakoda, "Dispersion relation and optical transmittance of a hexagonal photonic crystal slab", Phys. Rev. B, Condens. Matter, vol. 63, p. 125-107, 2001.

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