Op. Nestiorkin et al., NONLINEAR-THEORY OF 2-WAVE AND 4-WAVE INTERACTION BY MEANS OF A STATIONARY GRATING RECORDED BY DIFFERENT-FREQUENCY WAVES, Journal of the Optical Society of America. B, Optical physics, 11(1), 1994, pp. 53-60
Two- and four-wave interactions by means of a photorefractive grating
recorded by a moving interference pattern are investigated theoretical
ly. The primary stationary grating is recorded by two waves of differe
nt frequency in an externally applied ac field. Secondary shifted and
nonshifted gratings are recorded by frequency-degenerate interference;
their influence is analyzed qualitatively. The depletion of all the w
aves is taken into account.