Opal-based photonic crystals: Control of the optical properties by modifying the dielectric nature of the structure

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

Research output: Contribution to journalArticlepeer-review

Abstract

The optical properties of opal gratings were modified through the homogeneous coating of the internal opal surface with highly refractive coatings such as TiO2, InP, CdS, CdSe, and S. The optical transmission and reflectance spectra revealed the Bragg component which was dependent on the angle of incidence of light, lattice spacing and ordering, and refractive index. The photoluminescence (PL) study showed that the emission spectrum was affected by the interactions within the solid structure. The superlinear dependence of the PL intensity on the excitation power was found for opal with CdSe which resulted from the dissipationless radiation-to-matter interaction.

Original languageEnglish
Pages (from-to)527
Number of pages1
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
Volume11
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 Conference on Lasers and Electro-Optics, CLEO - Baltimore, MD, USA
Duration: 18 May 199723 May 1997

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