Influence of beam-coupling on photorefractive parametric oscillation in a dc-field-biased Bi_12SiO_20 crystal
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چکیده
منابع مشابه
Influence of alternating field frequency on enhanced photorefractive gain in two-beam coupling.
We derive an analytic expression describing the intensity and field frequency dependence of photorefractive gain in two-beam coupling under an alternating square-wave electric field. We determine the frequency and intensity ranges over which the gain is maximum and time independent. Experimental results for Bi(12)GeO(20) crystals are presented.
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15 صفحه اولPropagation of Cos-Gaussian Beam in Photorefractive Crystal
Abstract—A physical model for guiding the wave in photorefractive media is studied. Propagation of cos-Gaussian beam as the special cases of sinusoidal-Gaussian beams in photorefractive crystal is simulated numerically by the Crank-Nicolson method in one dimension. Results show that the beam profile deforms as the energy transfers from the center to the tails under propagation. This simulation ...
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ژورنال
عنوان ژورنال: Journal of the Optical Society of America B
سال: 1998
ISSN: 0740-3224,1520-8540
DOI: 10.1364/josab.15.002439