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Optical properties of natural topaz

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20 Citations (Scopus)

Abstract

The results of investigation of infrared, Raman and UV-Visible absorption spectra of natural topaz crystals from Ukraine before and after fast neutron irradiation are presented. We assume that the ∼ 620 nm band in topaz crystals is associated with the presence of Cr3+, Fe2+ and Mn2+ impurities. The broad band with maxima at 650 cm-1 observed in Raman spectra for topaz irradiated by fast neutrons may be connected with lattice disorder. Exchange interaction between radiation defect and impurity ions during neutron irradiation leads to appearance of additional absorption band in UV-VIS spectra and bands broadening in infrared and Raman spectra of investigated crystals.

Original languageEnglish
Article number012051
JournalIOP Conference Series: Materials Science and Engineering
Volume49
Issue number1
DOIs
Publication statusPublished - 2013
EventInternational Conference on Functional Materials and Nanotechnologies 2013, FM and NT 2013 - Tartu, Estonia
Duration: 21 Apr 201324 Apr 2013

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