Transient four-wave mixing in a transparent two-component medium
Ivakhnik V.V., Savelyev M.V.

Samara National Research University, Samara, Russia

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.

four-wave radiation converter, phase conjugation, transparent two-component medium.

Ivakhnik VV, Savelyev MV. Transient four-wave mixing in a transparent two-component medium. Computer Optics 2018; 42(2): 227-235. DOI: 10.18287/2412-6179-2018-42-2-227-235.


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