Physics of the Solid State

, Volume 49, Issue 4, pp 708–714

Optical characterization of natural and synthetic opals by Bragg reflection spectroscopy

  • O. A. Kavtreva
  • A. V. Ankudinov
  • A. G. Bazhenova
  • Yu. A. Kumzerov
  • M. F. Limonov
  • K. B. Samusev
  • A. V. Sel’kin
Optical Properties

DOI: 10.1134/S106378340704018X

Cite this article as:
Kavtreva, O.A., Ankudinov, A.V., Bazhenova, A.G. et al. Phys. Solid State (2007) 49: 708. doi:10.1134/S106378340704018X

Abstract

The Bragg reflection of light from natural and synthetic opals was studied experimentally, and the samples were characterized by atomic-force microscopy. The reflection spectra were theoretically calculated within the model of a planar, periodically layered medium. A comparison of the experimental and calculated data made it possible to determine the parameters of the crystal structure of synthetic opals (lattice constants and sintering coefficients of a-SiO2 particles). It was concluded that the pores in the structure of natural opals are filled by a material with a refractive index close to that of a-SiO2.

PACS numbers

42.70.Qs 42.25.Fx 

Copyright information

© Pleiades Publishing, Ltd. 2007

Authors and Affiliations

  • O. A. Kavtreva
    • 1
  • A. V. Ankudinov
    • 1
  • A. G. Bazhenova
    • 1
  • Yu. A. Kumzerov
    • 1
  • M. F. Limonov
    • 1
  • K. B. Samusev
    • 1
  • A. V. Sel’kin
    • 1
  1. 1.Ioffe Physicotechnical InstituteRussian Academy of SciencesSt. PetersburgRussia

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