Influence of the pump wave rotation and divergence on the spatial selectivity of a four-wave radiation converter in a transparent two-component medium

Abstract

The spatial selectivity of the degenerate four-wave radiation converter in a transparent twocomponent medium based on the electrostriction and Dufour effect has been analyzed as a function of the rotation and divergence of pump waves. Expressions connecting most efficiently the converted spatial frequency bandwidth with the rotation angle and divergence of pump waves has been obtained.

Spatial and temporal characteristics of a four-wave radiation converter with due regard for Earth's gravity field acting on nanoparticles dissolved in a transparent liquid

“…Как видно из рис. 2, в модуле амплитуды объектной волны на низких пространственных частотах существует провал, причём величина 40  A на частоте 0    стремится к нулю, что свидетельствует о фильтрации ЧПИ высоких пространственных частот сигнальной волны [29].…”