Optical properties of Tl3SbS3 acousto-optic crystals |
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Authors: | N.N. Syrbu T.S. Vieru |
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Affiliation: | Laboratory of Micro-Optoelectronics, Technical University of Moldova, Telecommunication, bd. Stefan cel Mare, 168, Chisinau, MD-2004, Republic of Moldova |
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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 E⊥c 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 , heavy and light holes. |
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Keywords: | Exciton reflection spectra Acousto-optical material Energy bands parameters |
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