The coupling gain for different photorefractive materials with counterpropagating beams
Autor: | Z. Chen, T. Shiosaki, A. Krumins |
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Rok vydání: | 1995 |
Předmět: | |
Zdroj: | Ferroelectrics. 170:237-241 |
ISSN: | 1563-5112 0015-0193 |
DOI: | 10.1080/00150199508014214 |
Popis: | The effects of photo-voltaic (LiNbO3:Fe) and drift (PLZT 9/65/35) nonlinearities on the recording reflection gratings are considered. The discontinuities of transmitted and backscattered laser beam incident along the optical axis are observed in LiNbO3:Fe and described by the quasi-breakdown at the surface due to a strong photovoltaic field. The origin of large coupling gain (26 cm−1) for reflection grating in LiNbO3:Fe and zero gain in PLZT 9/65/35 in applied field have been discussed. |
Databáze: | OpenAIRE |
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