TY - SER AU - Ezhov,Dmitry M. AU - Losev,V.F. AU - Andreev,Yury M. AU - Lanskii,Grigory V. AU - Lubenko,D.M. TI - IR-to-THz down conversion in nonlinear Gase:Al crystals KW - оптические свойства KW - генераторы терагерцового излучения KW - нелинейные кристаллы KW - легирование KW - ИК-диапазон KW - статьи в журналах N1 - Библиогр.: 15 назв N2 - The optical properties and hardness of GaSe, GaSe:Al, GaSe:S:Al, and GaSe:Al:O crystals are studied to create effective terahertz radiation generators. Doped crystals differ from pure GaSe in high mechanical and optical properties at a optimum doping level. Oxygen doping allows wide ranging changes in birefringence in the terahertz range UR - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000792067 ER -