Isotropic photonic bandgap in Penrose textured metallic mircocavity

J. Y. Zhang, Hoi Lam TAM, W. H. Wong, Y. B. Pun, J. B. Xia, Kok Wai CHEAH*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

4 Citations (Scopus)

Abstract

Photonic microcavity has modified photonic modes that have intense localized electric field, which can couple strongly with the embedded emission centers. In this work, we fabricated 2D photonic microcavities with Penrose quasicrystal pattern with 10-fold symmetry. Organic luminescence material tris(8-hydroxyquinoline) aluminum (Alq3) was embedded into the microcavity and the angle resolved transmission (ART) and photoluminescence (ARPL) spectra of the microcavity were measured. The results showed that the normal Gaussian photoluminescence spectrum of Alq3 has been strongly modified by the microcavity dispersion characteristic. In addition, omni-directional photonic band gap exists in the microcavity. The higher symmetry of Penrose quasicrystal pattern means that there was minimal difference in the directional dispersion characteristics.

Original languageEnglish
Pages (from-to)247-249
Number of pages3
JournalSolid State Communications
Volume138
Issue number5
DOIs
Publication statusPublished - May 2006

Scopus Subject Areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

User-Defined Keywords

  • A. Photonic crystal
  • A. Quasicrystal
  • C. Metallic microcavity

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