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Impedance of photonic crystals and photonic crystal waveguides

Appl. Phys. Lett. 84, 1254 (2004); doi:10.1063/1.1649815

Issue Date: 23 February 2004

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R. Biswas, Z. Y. Li, and K. M. Ho
Department of Physics and Astronomy, Ames Laboratory and Microelectronics Research Center, Iowa State University, Ames, Iowa 50011
We develop and demonstrate the concept of impedance for a photonic crystal by generalizing the transverse wave impedance of conventional waveguides. The impedance involves a ratio of transverse fields and power flux. The calculated impedance for a two-dimensional photonic crystal is very well defined using the transfer matrix method. The predicted frequency-dependent reflectance from this impedance agrees very well with rigorous transfer matrix calculations for band modes and waveguiding modes in the band gap. This impedance concept will be very powerful in minimization of insertion loss into photonic crystal waveguides, designing waveguide splitters, and for modeling reflectance/transmittance from photonic crystals. ©2004 American Institute of Physics.
History: Received 14 October 2003; accepted 19 December 2003
Permalink: http://link.aip.org/link/?APPLAB/84/1254/1
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KEYWORDS and PACS

Keywords
PACS
  • 42.70.Qs
    Photonic bandgap materials
  • 42.79.Gn
    Optical waveguides and couplers
  • 42.25.Gy
    Edge and boundary effects; optical reflection and refraction
  • YEAR: 2004

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (12)
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