Spontaneous hexagon formation in photorefractive crystal with a single pump wave.
نویسندگان
چکیده
A new scheme for spontaneous formation of hexagonal optical patterns in photorefractive crystals with dominant reflection gratings and a single pump wave is proposed and realized experimentally. It is shown theoretically that spontaneous hexagon formation results from random small-angle scattering of the pump wave inside the crystal. The threshold of spontaneous hexagon formation is found.
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عنوان ژورنال:
- Optics letters
دوره 24 21 شماره
صفحات -
تاریخ انتشار 1999