Parallel phase shifting interferometry using a double cyclic shear interferometer

Noel-Ivan Toto-Arellano; David-Ignacio Serrano-García; Amalia Martínez-García; Juan Antonio Rayas-Álvarez; Gustavo Rodríguez-Zurita; Areli Montes-Pérez

doi:10.1117/12.901957

2 November 2011 Parallel phase shifting interferometry using a double cyclic shear interferometer

Noel-Ivan Toto-Arellano, David-Ignacio Serrano-García, Amalia Martínez-García, Juan Antonio Rayas-Álvarez, Gustavo Rodríguez-Zurita, Areli Montes-Pérez

Author Affiliations +

Proceedings Volume 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World; 80110N (2011) https://doi.org/10.1117/12.901957
Event: International Commission for Optics (ICO 22), 2011, Puebla, Mexico

Abstract

In this work we present a parallel polarizing phase shifting interferometer based in a Double Cyclic Interferometer (DCSI) to analyze transparent samples. This system has the advantage of generating four beams that can interfere properly; this can reduce the number of captures needed in phase shifting interferometry. The interferometric system generates two π-shifted interferograms, which are recorded by the CCD camera in a single-shot. For the processing of the optical phase data map, a parallel phase shift can be generated by placing a linear polarizer covering two patterns. We analyze the cases of four patterns with arbitrary shifts captured in two shots. The unwrapped phase is processed by Kreis methods. Experimental results obtained by the proposed interferometer are presented.

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Noel-Ivan Toto-Arellano, David-Ignacio Serrano-García, Amalia Martínez-García, Juan Antonio Rayas-Álvarez, Gustavo Rodríguez-Zurita, and Areli Montes-Pérez "Parallel phase shifting interferometry using a double cyclic shear interferometer", Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 80110N (2 November 2011); https://doi.org/10.1117/12.901957

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KEYWORDS

Interferometers

Phase shifts

Polarization

Phase interferometry

Phase shifting

Interferometry

Mirrors

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