Moving grating and dc external field in photorefractive GaP at 633 nm.
We demonstrate that the photorefractive effect in GaP crystal at 633 nm can be enhanced using an externally applied dc field and a moving grating. A two-beam coupling gain coefficient of 2.5 cm(-1) and a steady-state phase-conjugate reflectivity of 1.9% were obtained.
Ma
J
J
Taketomi
Y
Y
Fainman
Y
Y
Ford
J E
JE
Lee
S H
SH
Chino
K
K