Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
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.
Язык оригинала | английский |
---|---|
Название основной публикации | 2011 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 |
Страницы | 2122-2124 |
Число страниц | 3 |
DOI | |
Состояние | Опубликовано - 1 дек 2011 |
Событие | International Quantum Electronics Conference/ Conference on Lasers and Electro-Optics Pacific Rim - Sydney, Австралия Продолжительность: 28 авг 2011 → 1 сен 2011 https://istina.msu.ru/collections/3419996/ |
конференция | International Quantum Electronics Conference/ Conference on Lasers and Electro-Optics Pacific Rim |
---|---|
Сокращенное название | IQEC 2011/CLEO Pacific Rim 2011 |
Страна/Tерритория | Австралия |
Город | Sydney |
Период | 28/08/11 → 1/09/11 |
Сайт в сети Internet |
ID: 28231875