Contrast inversion in the Lau phenomena implemented with a photorefractive grating
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It was implemented the Lau effect with a grating registered in a BSO crystal. Two different arrangement were analyzed. In both cases, it is possible to control the visibility and to produce the contrast inversion of fringes, by properly setting the pass plane orientation of an analyzer located at the crystal output.
Myrian C. Tebaldi ; Luciano Angel and Nestor A. Bolognini "Contrast inversion in the Lau phenomena implemented with a photorefractive grating", Proc. SPIE 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, 294 (July 6, 1999); doi:10.1117/12.358384; http://dx.doi.org/10.1117/12.358384