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

The spatial selectivity of the degenerate four-wave radiation converter in a transparent two-component 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.