Phase Matching Property of Cross Polarization Four Wave Mixing in BaTiO3 Crystal |
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Authors: | Motoki Saito Atsushi Okamoto Kunihiro Sato Yosihisa Takayama |
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Affiliation: | (1) Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060, Japan;(2) Faculty of Engineering, Hokkai-Gakuen University, Sapporo, Hokkaido 064, Japan |
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Abstract: | Four wave mixing (FWM) is of considerable interest in generation of a phase conjugate beam with photorefractive crystals. The common methods of FWM are parallel polarization FWM and cross polarization FWM. In this paper, we analyze the phase matching property of the latter. First, we consider the phase matching condition, and derive equations representing the angler relationship of interacting beams. Then, we consider the phase mismatching which is caused by shift of the probe beam angle from the phase matching condition, and calculate the effect of the shift of this angle on the amount of phase mismatching. We also determine and closely examine the coupling constant. |
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Keywords: | photorefractive cross polarization four wave mixing phase matching phase mismatching coupling coefficient |
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