Self-pumped phase conjugation of diffusely reflected light in a KNSBN crystal.
We report self-pumped phase conjugation in a Cu:KNSBN crystal for light diffusely reflected from a rough surface. We have demonstrated wave-front distortion compensation for diffuse reflection. We have experimentally studied the dependence of the phase-conjugation reflectivity on the f-number of a lens imaging the spot upon the diffuser into the crystal and on the size of the beam incident upon the diffuser surface. Finally, with a Michelson interferometer we observed the phase fluctuation of the phase-compensated wave front.
Zhao
M
M
Yamaguchi
I
I