Phase conjugation in CdS and related materials

Claus F. Klingshirn, M. Wegener, Claus Dörnfeld +3 more

M.M. Stallard, N. Mandokoro

Brodin, Anatoly A. Borshch, V.I. Volkov +1 more

The exact solution of the nonlinear equations, describing phase conjugation (PC) was obtained. Theoretical dependence of the backward wave intensity on that of interacting waves with Gaussian time shape exhibits well-pronounced hysteresis, which causes the bistable operation when total pump intensity exeeds some critical value Icr. Several hysteresis loops are expected to appear with further increase of pumping.

K. Leung, Richard B. Holmes, Allen M. Flusberg

Anatoly A. Borshch, М. С. Бродин, V. I. Volkov +2 more

The exact solution of the nonlinear phase-conjugation equations in the case of fifth-order nonlinearity is presented. The theoretical dependence of the backward-wave intensity on that of the interacting waves with Gaussian time shape exhibit well-pronounced hysteresis that is in agreement with experimental results performed on CdS crystals (nanosecond laser pulses). The physical nature of the phenomenon is discussed using the concept of scattering diagrams in terms of dynamic holography.

M. Wegener, Claus Dörnfeld, M. Lambsdorff +2 more

We investigate optical bistability in CdS single crystal platelets and related materials either due to electronic or thermal effects, depending on the length of the excitation pulses. An induced absorber in a hybrid ring cavity with cw-input shows self oscillations.