Dynamic phase profile of phase objects based in the use of a quasi-common path interferometer

In this paper, we propose a quasi common-path interferometer based on a two beams configuration (TBC) using simultaneous phase shifting interferometry modulated by polarization that shows insensitivity against external vibration. Due to the fact that the configuration is capable of obtaining two bea...

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Bibliographic Details
Published in:	Optik (Stuttgart) Vol. 123; no. 19; pp. 1742 - 1745
Main Authors:	Serrano-García, David Ignacio, Toto-Arellano, Noel Ivan, Martínez-García, Amalia, Álvarez, Juan Antonio Rayas, Zurita, Gustavo Rodríguez
Format:	Journal Article
Language:	English
Published:	Elsevier GmbH 01-10-2012
Subjects:	Beams (radiation) Dynamical systems Dynamics Grating Interference Interferometers Interferometry Phase objects Phase shifting Polarization Vibration Polarization Phase shifting Grating Interferometry
Online Access:	Get full text
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Summary:	In this paper, we propose a quasi common-path interferometer based on a two beams configuration (TBC) using simultaneous phase shifting interferometry modulated by polarization that shows insensitivity against external vibration. Due to the fact that the configuration is capable of obtaining two beams whose separation can be varied, according to the characteristics of the grid used, to obtain the interference patterns. It can be used to implement a quasi-common path interferometer that allows the measurement of dynamic events with high accuracy. For demodulate the fringe patterns generated by the optical system we using the conventional four step phase shifting method. Experimental results are also given.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0030-4026 1618-1336
DOI:	10.1016/j.ijleo.2012.02.044