Photorefractive two-beam coupling with white light.
We demonstrate, for the first time to our knowledge, two-beam coupling in BaTiO(3) using white light. An achromatic grating arrangement in conjunction with a high-pressure mercury-arc lamp is used to produce the white-light fringes. The sensitivity of the coupling to source coherence, crystal orientation, and grating spacing is determined, and a comparison with two-beam coupling with monochromatic light at the same intensity is made.
Rabinovich
W S
WS
Feldman
B J
BJ