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/ L. I. Isaenko [et al.] // Opt. Mater. - 2015. - Vol. 47. - P. 413-419, DOI 10.1016/j.optmat.2015.06.014. - Cited References:23. - This work was supported by the Russian Foundation of Basic Research (Grant No. 15-02-03408a) . - ISSN 0925-3467
   Перевод заглавия: Структура и оптические свойства нелинейного кристалла Li2Ga2GeS6РУБ Materials Science, Multidisciplinary + Optics

Аннотация: Structure and optical properties of new nonlinear crystal - Li2Ga2GeS6 single crystal of optical quality, grown by the Bridgman technique were studied. The data on transmission, Raman scattering, luminescence emission, excitation and thermal quenching as well as thermostimulated luminescence are presented. Fundamental absorption edge is determined by the direct allowed electronic transitions: The values of optical band gap are estimated. Absorption band at 8.0 mu m is due to S-S vibrations. Features in photoluminescence spectra are associated with excitons: both free (narrow line at 371 nm) and self-trapped ones (broad bands at 596, 730 and 906 nm). Spontaneous emission in the 80-170 K range, both at crystal heating and cooling, is typical of pyroelectrics: This confirms the absence of symmetry center in Li2Ga2GeS6 and an opportunity of laser frequency nonlinear conversion. (C) 2015 Elsevier B.V. All rights reserved.

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Держатели документа:
SB RAS, VS Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia.
Novosibirsk State Univ, Novosibirsk 630090, Russia.
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Khabarovsk 680021, Russia.

Доп.точки доступа:
Isaenko, L. I.; Исаенко Л. И.; Yelisseyev, A. P.; Елисеев, Александр Павлович; Lobanov, S. I.; Лобанов С. И.; Krinitsin, P. G.; Криницын, Павел Геннадьевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Russian Foundation of Basic Research [15-02-03408a]