Optical and microradian X-ray diffraction from opal-like films: Transition from 2D to 3D regimes

I. S. Sinev, A. K. Samusev, K. B. Samusev, N. A. Grigoryeva, A. A. Mistonov, D. Byelov, A. V. Petoukhov, S. V. Grigoriev

Research outputpeer-review

Abstract

In this work diffraction of light and x-rays (XRD) on opal-like structures (OLS) is considered. New methodological approaches to collection, processing and interpretation of experimental data are presented. The microradian XRD reveals the type and degree of imperfection of opal-like structures. It was shown that the OLS ordered in the twinned face centered cubic (FCC) structures with the lattice constant of 835 ± 10 nm but also with clear tendency to the random hexagonal close-packed (RHCP) structure along the [111] axis. A novel representation of the light diffraction data in the "incident angle-scattered angle" coordinates θ, Θ allows one to easily distinguish the reflections originating from 2D diffraction from the ones governed by 3D Bragg diffraction. Structural disorder becomes apparent in the θ, θ representation, as well. In addition, it was demonstrated that the immersion spectroscopy method can be used to selectively switch diffraction reflections. This phenomenon is caused by optical inhomogeneity of the SiO2 particles that form opal-like crystals.

Original languageEnglish
Title of host publication2011 Int. Quantum Electr. Conf., IQEC 2011 Conf Lasers Electro-Optics, CLEO Pacific Rim 2011 Incorporating Australasian Conf. on Optics, Lasers Spectrosc. Australian Conf. Optical Fibre Technol.- Conf
Pages2122-2124
Number of pages3
DOIs
Publication statusPublished - 1 Dec 2011
EventInternational Quantum Electronics Conference/ Conference on Lasers and Electro-Optics Pacific Rim - Sydney
Duration: 28 Aug 20111 Sep 2011
https://istina.msu.ru/collections/3419996/

Conference

ConferenceInternational Quantum Electronics Conference/ Conference on Lasers and Electro-Optics Pacific Rim
Abbreviated titleIQEC 2011/CLEO Pacific Rim 2011
CountryAustralia
CitySydney
Period28/08/111/09/11
Internet address

Scopus subject areas

  • Electrical and Electronic Engineering

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