Phase conjugation in stimulated scattering

摘要: Various aspects of optical phase conjugation are discussed: the properties conjugate wave, its potential applications, basic methods, and a brief history question. The theory for in stimulated scattering is set forth detail. experimental results on this method also discussed Phase occurs because that configuration back-scattered field which has wavefront amplified to greatest extent (at doubled gain) intense speckle-inhomogeneous wave medium occurs. Because large overall amplification scattering, all other, uncorrelated, configurations spontaneously scattered nucleating waves by factor 107 less discriminated against. intervals values various parameters (the specklon) exists theoretically, as effect nonlinear selection saturation scattering. There review first observation effect, measurement angular structure uncorrelated they against, fluctuations subthreshold depolarized radiation, focused beams other scattered-wave mechanisms.