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Interferometry based on Lau effect with a grating registered in a photorefractive crystal

โœ Scribed by M. Tebaldi; L.Angel Toro; N. Bolognini

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
206 KB
Volume
31
Category
Article
ISSN
0030-3992

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โœฆ Synopsis

The use of a grating in the form of modulation of birefringence in a BSO crystal in a novel Lau interferometer set-up is proposed. The system behaves as a conventional Lau interferometer implemented by using two amplitude gratings. Moreover, it permits control of the visibility and provides a contrast inversion of the interferometric fringes by rotating a polarizer. Two alternative experimental arrangements with similar performance are presented. A theoretical approach is outlined and the predicted behavior is conยฎrmed by results obtained under dierent experimental conditions.

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