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Information × Registration Number 0212U008339, 0112U007128 , R & D reports Title The structural stability of the polarization and phase singularities of optical beams in parametric and non-uniform perturbed anisotropic media popup.stage_title Head Vlokh Rostyslav Orestovych, Registration Date 11-01-2013 Organization Institute of Physical Optics named after O.G. Vlokh of Ministry of Education and Science of Ukraine popup.description2 a-BaB2O4 and b-BaB2O4 crystals of borates family were selected to create a powerful singular beams. An the study of the torsion influence on birefringence and optical indicatrix rotation it was found in ABO crystals that the spatial surface of birefringence distribution, constructed in the coordinates (X, Y, delta (n)), has a conical shape, with the cone axis coincides with the axis of torsion. The method of high-power optical vortices generating by ABO crystals twisting was developed. The numerical simulation of control of spin-orbital conversion efficiency at mechanical torsion of a-BaB2O4 and b-BaB2O4 crystals was carried out. The gigantic spikes of orbital angular momentum associated with the processes of conversion of the central optical vortex in circularly polarized components of singular elliptic beam that propagated perpendicular to the optical axis of the uniaxial crystal were theoretically predicted and experimentally detected. Product Description popup.authors Алексеєв Костянтин Михайлович Васильків Юрій Васильович Влох Ростислав Орестович Воляр Олександр Володимирович Костирко Мирослав Євгенійович Скаб Ігор Петрович Фадеєва Тетяна Андріївна popup.nrat_date 2020-04-02 Close