Photorefractive coupling between orthogonally polarized light beams in barium titanate
In certain crystals, photorefractive two-beam coupling is predicted for orthogonally polarized optical beams. The prediction follows from the phenomenological tensor form of the photogalvanic current. We demonstrate this coupling by measuring the complex beam-coupling coefficient in barium titanate...
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| Published in | Optics letters Vol. 17; no. 11; p. 784 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
01.06.1992
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| Online Access | Get more information |
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| Summary: | In certain crystals, photorefractive two-beam coupling is predicted for orthogonally polarized optical beams. The prediction follows from the phenomenological tensor form of the photogalvanic current. We demonstrate this coupling by measuring the complex beam-coupling coefficient in barium titanate and show that the photogalvanic current correctly predicts the form for the coefficient as a function of the beam crossing angle. |
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| ISSN: | 0146-9592 |
| DOI: | 10.1364/ol.17.000784 |