Chalmers interferometric test using a reflective spatial light modulator

In this paper, we propose the use of a reflective spatial light modulator (RSLM) controlled by a PC, instead of a metal plate with holes, to produce the interference patterns in Chalmers interferometric test. The main advantage of the proposed method is that with an RSLM, it is possible to test and...

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Bibliographic Details
Published in:Optics express 2012-10, Vol.20 (21), p.23865-23874
Main Authors: Canales-Pacheco, B, Cornejo-Rodríguez, A, Granados-Agustín, F
Format: Article
Language:English
Subjects:
Equipment Design
Equipment Failure Analysis
Interferometry - instrumentation
Interferometry - methods
Lighting - instrumentation
Lighting - methods
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Summary:In this paper, we propose the use of a reflective spatial light modulator (RSLM) controlled by a PC, instead of a metal plate with holes, to produce the interference patterns in Chalmers interferometric test. The main advantage of the proposed method is that with an RSLM, it is possible to test and obtain an interference pattern for any zone of a surface or lens by opening two appropriate apertures. This increases the accuracy of the results and reduces the time required to obtain them.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.20.023865