Nonlinear acousto-optics: improvements in optical spectrum analysis
In this work, the non-linear acousto-optical interaction is studied for the collinear and the non-collinear cases. First, a non-linear regime of the collinear acoustooptical interaction is considered with acoustic waves of finite amplitude considering the acoustic loses in a crystalline acousto-opti...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2016 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | inglés |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/345 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/345 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Efectos acústico-ópticos/Acousto-optical effects info:eu-repo/classification/Acústica óptica no lineal/Non-linear acousto-optics info:eu-repo/classification/Filtros acústico-ópticos/Acousto-optical filters info:eu-repo/classification/Multi-phonon light scattering/Multi-phonon light scattering info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2209 |
| Sumario: | In this work, the non-linear acousto-optical interaction is studied for the collinear and the non-collinear cases. First, a non-linear regime of the collinear acoustooptical interaction is considered with acoustic waves of finite amplitude considering the acoustic loses in a crystalline acousto-optical cell. The results of this analysis were confirmed first in a calcium molybdate (CaMoO4) acoustooptical cell. After this, the results were extrapolated to predict the performances of a lithium niobate (LiNbO3) acousto-optical cell oriented to the application in astrophysical spectroscopy near the ultraviolet range. This material, specifically, was in need of further analysis due to known phenomena within it that could affect the capabilities of such cell. Then, the non-collinear acousto-optical interaction is studied for the multiphonon light scattering in the Bragg regime. This regime allows only two possible cases of multiphonon light scattering, namely, the two- and three-phonon acoustooptical interaction. Together with this, a specific degree of freedom for this acousto-optical interaction is introduced to regulate the acoustic frequency necessary for the interaction to occur. The multiphonon light scattering was theoretically analyzed and experimented in two different crystals; calomel (Hg2Cl2) for the two-phonon interaction and tellurium dioxide (TeO2) for the three-phonon case. |
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