Symmetrical analysis of the defect level splitting in two-dimensional photonic crystals

N. Malkova, S. Kim, V. Gopalan

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

In this paper doubly degenerate defect states in the band gap of the two-dimensional photonic crystal are studied. These states can be split by a convenient distortion of the lattice. Through analogy with the Jahn-Teller effect in solids, we present a group theoretical analysis of the lifting of the degeneracy of doubly degenerate states in a square lattice by different vibronic modes. The effect is supported by the supercell plane-wave model and by the finite difference time domain technique. We suggest ways for using the effect in photonic switching devices and waveguides.

Original languageEnglish (US)
Pages (from-to)4535-4542
Number of pages8
JournalJournal of Physics Condensed Matter
Volume15
Issue number26
DOIs
StatePublished - Jul 9 2003

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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