Abstract
The conditions of parametric radiation generation on polaritons in cubic noncentrosymmetric crystals are studied. The possibility of such generation is theoretically justified. The polariton radiation frequencies are calculated for GaP, ZnSe, ZnTe, and GaAs crystals. The obtained generation frequencies are compared to the experimental results on Raman scattering on polaritons. The block diagram of the terahertz radiation generator operation using a GaP crystal and a pulsed laser with high peak power at low energy of laser pump pulses is presented. The lasing frequency shift is analyzed depending on the scattering geometry. The coefficient of exciting radiation conversion to the terahertz range is determined.
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Original Russian Text © V.S. Gorelik, G.M. Katyba, 2014, published in Kratkie Soobshcheniya po Fizike, 2014, Vol. 41, No. 5, pp. 17–28.
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Gorelik, V.S., Katyba, G.M. Generation of terahertz radiation in cubic non-centrosymmetric crystals. Bull. Lebedev Phys. Inst. 41, 127–134 (2014). https://doi.org/10.3103/S1068335614050030
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DOI: https://doi.org/10.3103/S1068335614050030