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Light and Thermal Induced Modification of the Refractive Index in As45S15Se40 Glasses

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dc.contributor.author IOVU, M. S.
dc.contributor.author BENEA, V. G.
dc.contributor.author COLOMEICO, E. P.
dc.contributor.author COJOCARU, I. A.
dc.date.accessioned 2019-11-06T11:57:02Z
dc.date.available 2019-11-06T11:57:02Z
dc.date.issued 2011
dc.identifier.citation IOVU, M. S., BENEA, V. G., COLOMEICO, E. P. et al. Light and Thermal Induced Modification of the Refractive Index in As45S15Se40 Glasses. In: Microelectronics and Computer Science: proc. of the 7th intern. Conf., September 22-24, 2011. Chişinău, 2011, vol. 1, pp. 74-77. ISBN 978-9975-45-174-1. en_US
dc.identifier.isbn 978-9975-45-174-1
dc.identifier.uri http://repository.utm.md/handle/5014/6227
dc.description.abstract The experimental investigations of the influence of the light irradiation on the optical parameters of amorphous As45S15Se40 thin films prepared by „flash” thermal evaporation was investigated. From the experimental transmission spectra T=f() the value of the refractive index n, and optical band gap Eg was determined. It was established that the light exposure and the heat treatment modify the optical constants of the investigated amorphous films. From the Tauc plot (h)1/2 vs. (h) the optical band gap Eg for amorphous As45S15Se40 thin films is Eg=1.929 eV. For amorphous As45S15Se40 thin films the exposure time decrease the optical band gap Eg and the refractive index n, but the annealing temperature increase these values. The modifications of the optical constants under the light exposure and heat treatment allow using these materials as effective media for registration of the optical and holographic information. en_US
dc.language.iso en en_US
dc.publisher Technical University of Moldova 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 amorphous films en_US
dc.subject optical absorption en_US
dc.subject refraction en_US
dc.subject dielectric constant en_US
dc.title Light and Thermal Induced Modification of the Refractive Index in As45S15Se40 Glasses en_US
dc.type Article en_US


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