Group-theoretical description of the triangular air-silica photonic crystal out of plane propagation

M. Løkke, N.E. Christensen, Jesper Riishede, Anders Overgaard Bjarklev

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The method of assigning irreducible representations to modes in three-dimensional photonic structures is applied to the two-dimensional triangular air-silica lattice with out-of-plane wave propagation. In particular prediction of spatial symmetries of the crystal modes is addressed. We show how the photonic bands are affected by different rod radii and out-of-plane components from a group-theoretical point of view. One particular defect mode is analyzed and the structure which is optimal for air-guidance is found. $CPY 2004 Optical Society of America.
    Original languageEnglish
    JournalOptics Express
    Volume12
    Issue number25
    Pages (from-to)6299-6312
    ISSN1094-4087
    Publication statusPublished - 2004

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