Нестационарное четырёхволновое взаимодействие в прозрачной двухкомпонентной среде

Ивахник Валерий Владимирович, M. Savelyev

Published Jan 1, 2018• 0 citations

Abstract

We analyze changes in the spatial structure of an object wave under four-wave mixing in a transparent two-component medium in schemes with opposing and concurrent pump waves.It is shown that in the spatial spectrum of the object wave there is a dip, whose position is determined by the propagation direction of the second pump wave.Angular rotation and frequency shift of the pump waves lead to a decrease in the conversion efficiency of high spatial frequencies.The bandwidth of the spatial frequencies cut out by the four-wave radiation converter decreases monotonically over time, whereas the bandwidth of the most efficiently converted spatial frequencies increases.

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