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Polarization Simultons in CARS by Polaritons

Polarization Simultons in CARS by Polaritons

作     者:Vladimir Feshchenko Galina Feshchenko Vladimir Feshchenko;Galina Feshchenko

作者机构:Dawson College Montreal Canada Vanier College Montreal Canada 

出 版 物:《Journal of Applied Mathematics and Physics》 (应用数学与应用物理(英文))

年 卷 期:2023年第11卷第2期

页      面:582-597页

学科分类:070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主  题:Nonstationary Stimulated Raman Scattering Polaritons Phonons Solitons Polarization 

摘      要:The system of shortened Maxwell’s equations simulating the processes of evolution of the stimulated Raman scattering (SRS) by polaritons in anisotropic dipole-active crystals is obtained. The theory was developed for the case of cubic crystals which become anisotropic due to the deformation of the dielectric constant by the linearly polarized pump wave. The pump field is a linearly polarized plane electromagnetic wave. We report the results of the theoretical investigation of the possibility of the existence of a regime of pulse propagation as simultaneous travel of solitary waves in coherent anti-Stokes stimulated Raman scattering by polaritons in anisotropic crystals. The emphasis was made on the existence of both Stokes and anti-Stokes pulses propagating with two stable and perpendicular to the direction of travel polarizations. We showed the theoretical possibility of simultaneous propagation of pulses not only at frequencies of Stokes and anti-Stokes waves but the pump frequency as well. We obtained the expression for the gain factor g. It is also shown that the expression for g is consistent with the experimental results for the spectra of ZnS.

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