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 SM ISO690:2012SYRBU, Nicolae, DOROGAN, Valerian, NEMERENCO, Lucreţia, VIERU, Tatiana. Optical properties of Tl3SbS3 acousto-optic crystals. In: Optics Communications, 2006, vol. 259, pp. 744-750. ISSN 0030-4018. DOI: https://doi.org/10.1016/j.optcom.2005.09.076 |
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  Optics Communications |
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| Volumul 259 / 2006 / ISSN 0030-4018 | ||||||
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| DOI:https://doi.org/10.1016/j.optcom.2005.09.076 | ||||||
| Pag. 744-750 | ||||||
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Optical properties of acousto-optical material Tl3SbS 3 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 (mC1*=0. 12m0), heavy (mV1*=0.88m0) and light (mV2*=0. 196m0) holes. |
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| Cuvinte-cheie Acousto-optical material, Energy bands parameters, Exciton reflection spectra |
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