Polarization rotation induced by cascaded third-order processes.
Intensity-dependent polarization rotation that results from the simultaneous action of two third-order processes, self-phase modulation and four-wave mixing, is observed. The effect is recorded along the fourfold axis of a YVO(4) crystal. The angle of rotation is proportional to the square of the input intensity-crystal length product. This is to the authors' knowledge the first experimental evidence showing that intensity-dependent polarization rotation can be related to the real part of cubic susceptibility.
Minkovski
N
N
Saltiel
S M
SM
Petrov
G I
GI
Albert
O
O
Etchepare
J
J