Radiation losses of waveguide-based two-dimensional photonic crystals: positive role of the substrate

H. Benisty*, D. Labilloy, C. Weisbuch, C. J.M. Smith, T. F. Krauss, D. Cassagne, A. Béraud, C. Jouanin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

205 Citations (Scopus)

Abstract

Radiation losses occurring in photonic crystals etched into planar waveguides are analyzed using a first-order perturbation approximation. Assuming the incoherent scattering limit, the model indicates that losses diminish as the cladding index approaches the core index. A simple scheme is devised to include these losses into purely two-dimensional calculations by using an imaginary index. Such calculations are shown to agree with corresponding experimental transmission through near-infrared photonic crystals, reproducing the contrasting behavior of the "dielectric" and "air" band edges.

Original languageEnglish
Pages (from-to)532-534
Number of pages3
JournalApplied Physics Letters
Volume76
Issue number5
DOIs
Publication statusPublished - 31 Jan 2000
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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