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Influence of rare-earth impurities on optical properties of As2S3 glasses and KCl crystals

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dc.contributor.author TIRON, A. V.
dc.contributor.author ZALAMAI, V. V.
dc.contributor.author IOVU, M. S.
dc.contributor.author SYRBU, N. N.
dc.date.accessioned 2019-05-14T11:06:53Z
dc.date.available 2019-05-14T11:06:53Z
dc.date.issued 2018
dc.identifier.citation TIRON, A. V., ZALAMAI, V. V., IOVU, M. S. et al. Influence of rare-earth impurities on optical properties of As2S3 glasses and KCl crystals. In: Telecomunicaţii, Electronică şi Informatică: proc. of the 6th intern. conf., May 24-27, 2018. Chişinău, 2018, pp. 155-160. ISBN 978-9975-45-540-4. en_US
dc.identifier.isbn 978-9975-45-540-4
dc.identifier.uri http://repository.utm.md/handle/5014/2456
dc.description.abstract Optical transmission spectra of As2S3 glass-like plates and nanolayers, undoped and doped with Sm2+, Sm3+, Dy3+, Pr3+, and Mn3+ ions have been investigated. The spectral dependences of the refractive index and glass transmission spectra, registered in the configuration of crossed polarizers, were studied. The concentration of rare-earth ions in the matrix influences on the magnitude of refractive indices (n-, n+) of polarized light. The emission spectra of As2S3 glasses, doped with rare-earth ions (Sm2+, Sm3+, Pr3+), as well as KCl crystals, doped with Sm2+ ions, have been investigated for different temperatures in the range 300 - 10 K. A luminescence signal associated with recombination transitions of charge carriers from 5Dj and 5Lj levels to 7Fj levels of samarium ion was registered. A wide photoluminescence band was registered in the region 1.8 - 2.1 eV, which can be related to intercenter photoluminescence, and a number of narrow absorption bands were registered, which can be attributed to self-absorbtion process, determined by electronic transitions between the levels of samarium ions. en_US
dc.language.iso en en_US
dc.publisher Tehnica UTM en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject plăci de sticlă en_US
dc.subject nanoparticule en_US
dc.subject cristale en_US
dc.subject glass-like plates en_US
dc.subject crystals en_US
dc.subject nanolayers en_US
dc.title Influence of rare-earth impurities on optical properties of As2S3 glasses and KCl crystals en_US
dc.type Article en_US


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