Two-wave mixing gain in photorefractive GaAs: Cr using the moving grating technique has
been measured. The results compare well to theory when a value of τ di/τ 2 measured by …

Enhanced two-beam mixing amplification at a wavelength of 1.06 μm obtained by using
sinusoidal electrical fields at 7.7 MHz is reported. The peak measured gains are comparable …

The polarization dependence of two-wave mixing for two common crystal orientations is
described and theoretical and experimental results given. The direction of energy exchange …

The photorefractive two-wave mixing gain coefficient Γ of GaAs: Cr and InP: Fe, cut with
different crystallographic orientations, was determined using a cw Nd: YAG (neodymium …

We describe a new method for photorefractive response time measurement in fast
photorefractive crystals based on continuous phase modulation in two-wave mixing. We …

An expression for the gain in photorefractive two-wave mixing when radio-frequency (rf)
electric fields are applied to the material has been derived and compared with experiments …

We report two-beam coupling experiments at 1.06-μm wavelength using photorefractive
semi-insulating GaAs: Cr in the moving-grating recording mode. The steady-state gain …

We have developed an approximate analytic expression of two wave mixing for absorption
and phase gratings in photorefractive materials taking into account self-diffraction effect of …

We present measurements of the two-wave mixing gain as a function of frequency detuning
in photorefractive crystals. In many cases, this function is asymmetric, indicating that the …

We report experimental results on the photorefractive properties of chrome-doped GaAs.
Grating-formation time and the behavior of the two-beam-coupling gain as a function of …