Light propagation in a photonic-crystal-slab line-defect waveguide

Masatoshi Tokushima, Hirohito Yamada

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)


The guided and leaky modes of a photonic-crystal-slab line-defect waveguide were investigated by means of the direct three-dimensional (3-D) finite-difference time-domain (FDTD) simulation. The simulation predicted quasi-guided modes with long lifetimes in the cladding-mode continuum, while quasi-3-D analyses using projected band diagrams revealed only the existence of guided modes outside that continuum. It is shown that the direct 3-D analysis is necessary to account for measured transmission data for the photonic-crystal-slab line-defect waveguide with a finite length.

Original languageEnglish
Pages (from-to)753-759
Number of pages7
JournalIEEE Journal of Quantum Electronics
Issue number7
Publication statusPublished - 2002 Jul
Externally publishedYes


  • Bandgap
  • Guided mode
  • Leaky mode
  • Photonic crystal
  • SOI
  • Slab
  • Waveguide

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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