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Proceedings Paper

Vectorial shearing interferometer
Author(s): Marija Strojnik; Guillermo Garcia-Torales; Gonzalo Paez
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Paper Abstract

We describe a new type of shearing interferometer, with the capacity to control the amount and the direction of displacement shear. The vectorial shearing interferometer is based on the Mach-Zehnder configuration, by incorporating the displacement shearing system. It is composed of a pair of wedge prisms that modify with a high degree of precision the optical path length and the tilt of the sheared wave front with respect to that of the reference wave front. When the shearing direction is chosen along the CCD pixel rows and columns, a 2D derivative of the phase function is obtained, allowing its complete recovery in two-dimensions. The variable shear and tilt may be implemented along any other direction with the particularly beneficial characteristics that the number of fringes and their orientation may be controlled with the shear direction and its magnitude.

Paper Details

Date Published: 13 August 1999
PDF: 11 pages
Proc. SPIE 3744, Interferometry '99: Techniques and Technologies, (13 August 1999); doi: 10.1117/12.357757
Show Author Affiliations
Marija Strojnik, Ctr. de Investigaciones en Optica (United States)
Guillermo Garcia-Torales, Ctr. de Investigaciones en Optica (Mexico)
Gonzalo Paez, Ctr. de Investigaciones en Optica (Mexico)

Published in SPIE Proceedings Vol. 3744:
Interferometry '99: Techniques and Technologies
Malgorzata Kujawinska; Mitsuo Takeda, Editor(s)

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