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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1593| Energy exchange in thick photorefractive crystals of BTO with optical activity at high modulation depth | |
| FRANCISCO ESPINOSA MAGAÑA JOSE RURIK FARIAS MANCILLA | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| BTO | |
| In two-wave mixing (TWM) in a photorefractive material, the energy exchange that occurs along the sample thickness, changes the magnitude and the phase of the interacting beams. These changes can be neglected in the undepleted pump approximation (uniform grating) when the interaction lengths are small (thin crystals) or the beam coupling is very small. Nevertheless, in thick crystals these changes on both the magnitude and the phase of the interacting light beams can not be ignored. In this work we have performed a research intended to study the beam coupling, considering a thick sillenite crystal (BTO) with optical activity in a strong non-linear regime at high modulation depth. We also have included the effect of the polarization angle of the incident light beams on the energy exchange. The spatial non-uniformity of the grating along sample thickness in a self-consistent way is also considered in this treatment. | |
| 2007 | |
| Memoria de congreso | |
| Inglés | |
| OTRAS | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Artículos de Congresos |
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