TY  - SER
AU  - Panchenko,YuN.
AU  - Lanskii,Grigory V.
AU  - Losev,Valery F.
AU  - Lubenko,Dmitry M.
AU  - Andreev,Yury M.
TI  - Aspects for efficient wide spectral band THz generation via CO2 laser down conversion
KW  - фазовый синхронизм
KW  - параметрическое преобразование частоты
KW  - ТГц лазеры
KW  - статьи в журналах
N1  - Библиогр.: 37 назв
N2  - Detailed model study of THz generation by CO2 laser down-conversion in pure and solid solution crystals GaSe1-xSx is carried out for the first time. Both forward and backward collinear interactions of common (eo-e, oe-e, oe-o, oo-e, ee-o) and original (ee-e, oo-o) types are considered. Possibility of realization, phase matching angles and figure of merits are estimated for line mixing within 9 μm and 10 μm emission bands, as well between them. Dispersion properties of o- and e-wave refractive indices and absorption coefficients for GaSe, GaS and GaSe1-xSx crystals were preliminary measured by THz-TDS, approximated in the equation form and then used in the study. Estimated results are presented in the form of 3-D figures that are suitable for rapid analyses of DFG parameters. The most efficient type of interaction is eo-o type. Optimally doped (x = 0.09-0.13) GaSe1-xSx crystals are from 4 to 5 times more efficient at limit pump intensity than not doped GaSe crystals. 

 Aspects for efficient wide spectral band THz generation via CO2 laser down conversion (PDF Download Available). Available from: https://www.researchgate.net/publication/281993171_Aspects_for_efficient_wide_spectral_band_THz_generation_via_CO2_laser_down_conversion [accessed May 3, 2017]
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000578294
ER  -