PHASE CONJUGATION THROUGH FOUR-WAVE MIXING

Robert W. Boyd, G. Grynberg

Celestino J. Gaeta

Cunkai Wu, Cui Yang-zhao, Wang Zhi-ying +1 more

Phase conjugation of forward-wave produced by degenerate four-wave mixing by using nearly resonantly enhanced nonlinearity in orgnic dye solutions. was investigated. Good-quality reconstructed images have been obtained by direct wave-front phase conjugation. Reconstructed images with a resolution of 6 lines/mm were obtained. For rhodamin 6G in alcolol solution of 2.5×10-5 mole, nonlinear reflection coefficient up to 10% has been obtained.

R. W. Hellwarth

S A Viznyuk, Pavel P Pashinin, Alexander M. Prokhorov +2 more

Michelle S. Malcuit, Daniel J. Gauthier, Robert W. Boyd

Optical phase conjugation is a process that leads to the correction of wavefront distortions under conditions such that a beam of light passes twice in opposite directions through an aberrating optical medium. Analogously, the state of polarization of an optical beam can become aberrated, (for example, by passing through a stressed optical component), and these polarization aberrations can be removed by the process of polarization conjugation. In polarization conjugation, the polarization unit vector of the incident wave is replaced by its complex conjugate in the generated wave.