Comparación de técnicas para desenvolver la fase del frente de onda, en pruebas de superficies ópticas
In this thesis we set up a Twyman-Green interferometer to test optical surfaces, we made Phase Shifting Interferometry (PSI) by using a plane mirror above a piezoelectric device in one arm of the interferometer, this is done to can displace the mirror small distances (some nanometers) and obtain the...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2007 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | español |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/656 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/656 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Interferómetro de cambio de fase/Phase shifting interferometer info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2209 info:eu-repo/classification/cti/220906 |
| Sumario: | In this thesis we set up a Twyman-Green interferometer to test optical surfaces, we made Phase Shifting Interferometry (PSI) by using a plane mirror above a piezoelectric device in one arm of the interferometer, this is done to can displace the mirror small distances (some nanometers) and obtain the desired phase displacement. With a camera CCD we record a series of interferograms, these interferograms are used to obtain the wrapped phase, the number of this interferograms depends on the algorithm used to decode the wavefront phase of the surface under test. Finally we unwrap the phase with some techniques, we made a comparison between this techniques unwrapping interferograms obtained experimentally and we made some comments. |
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