Abstract
We demonstrate, for the first time to our knowledge, two-beam coupling in BaTiO3 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.
© 1991 Optical Society of America
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