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Optical properties of Tl3SbS3 acousto-optic crystals
Authors:NN Syrbu  TS Vieru
Institution:Laboratory of Micro-Optoelectronics, Technical University of Moldova, Telecommunication, bd. Stefan cel Mare, 168, Chisinau, MD-2004, Republic of Moldova
Abstract:Optical properties of acousto-optical material Tl3SbS3 were investigated at the fundamental absorption edge. The basic (n = 1) and excited (n = 2, 3) exciton states were obtained from the λ-modulated reflection spectra for polarizations Ec at 10 K. Taking into account the spatial dispersion we determined the parameters of excitons by calculating the spectra shapes of λ-modulated reflection of line n = 1 and estimated values of the zone-translation masse and the reduced effective masse of excitons, the effective masse of electrons View the MathML source, heavy View the MathML source and light View the MathML source holes.
Keywords:Exciton reflection spectra  Acousto-optical material  Energy bands parameters
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