Determination of the birefringent medium phase difference order in the optical vortex birefringence compensator

Monika Borwińska; Bogusława Dubik; Marcelina Banach; Piotr Kurzynowski

doi:10.1117/12.781183

28 April 2008 Determination of the birefringent medium phase difference order in the optical vortex birefringence compensator

Monika Borwińska, Bogusława Dubik, Marcelina Banach, Piotr Kurzynowski

Author Affiliations +

Proceedings Volume 7003, Optical Sensors 2008; 70031W (2008) https://doi.org/10.1117/12.781183
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

In this paper the two-wavelength procedure for determining of the birefringence medium phase retardance order using the optical vortex birefringence compensator (OVBC) is presented. The OVBC generates regular optical vortex lattice which moves if the measured birefringent medium is placed into the compensator setup. Due to the vortex lattice regularity, tracing the lattice shift after the measured medium is inserted, there is no possibility to determine the absolute phase retardance in the monochromatic light. This is an analogy to the well known problem in the classical fringe interferometry. Having recorded interferograms for two waves with slightly different wavelengths, one can identify the centers of the two pairs of interferogram images (with and without the examined medium in the setup) and hence in that way the absolute shift of the vortex lattice. In the paper the theoretical considerations, numerical simulations, as well as the analysis of the interferograms taken from the experiment are presented.

Citation Download Citation

Monika Borwińska, Bogusława Dubik, Marcelina Banach, and Piotr Kurzynowski "Determination of the birefringent medium phase difference order in the optical vortex birefringence compensator", Proc. SPIE 7003, Optical Sensors 2008, 70031W (28 April 2008); https://doi.org/10.1117/12.781183

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