期刊
JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS
卷 6, 期 5, 页码 S397-S403出版社
IOP PUBLISHING LTD
DOI: 10.1088/1464-4266/6/5/030
关键词
photorefractive nonlinear optics; self-focusing; instabilities
We study theoretically and experimentally the modulational instability of broad optical beams in photorefractive nonlinear media. The angular dependence of the growth rate of periodic perturbations is calculated. Our findings are confirmed by experimental measurements on a strontium barium niobate photorefractive crystal.
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