Enhancement of the photonic gap of opal-based three-dimensional gratings

  • S. G. Romanov
  • , N. P. Johnson
  • , A. V. Fokin
  • , V. Y. Butko
  • , H. M. Yates
  • , M. E. Pemble
  • , C. M. Sotomayor Torres

Research output: Contribution to journalArticlepeer-review

Abstract

The "semimetallic" photonic band gap formed in a synthetic opal has been increased by depositing a layer (InP or TiO2) with high refractive index on the inner surface of opal voids. Reflectance spectra of the composites (nanolayers assembled within grating voids) are correlated with both the photonic structure of the opal and electronic structure of the semiconductor.

Original languageEnglish
Pages (from-to)2091-2093
Number of pages3
JournalApplied Physics Letters
Volume70
Issue number16
DOIs
Publication statusPublished - 21 Apr 1997
Externally publishedYes

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