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Proceedings Paper

Space-variant polarization patterns of non-collinear Poincare superpositions
Author(s): E. J. Galvez; K. Beach; Jonathan J. Zeosky; B. Khajavi
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Paper Abstract

We present analysis and measurements of the polarization patterns produced by non-collinear superpositions of Laguerre-Gauss spatial modes in orthogonal polarization states, which are known as Poincaré modes. Our findings agree with predictions (I. Freund Opt. Lett. 35, 148-150 (2010)), that superpositions containing a C-point lead to a rotation of the polarization ellipse in 3-dimensions. Here we do imaging polarimetry of superpositions of first- and zero-order spatial modes at relative beam angles of 0-4 arcmin. We find Poincaré-type polarization patterns showing fringes in polarization orientation, but which preserve the polarization-singularity index for all three cases of C-points: lemons, stars and monstars.

Paper Details

Date Published: 10 March 2015
PDF: 8 pages
Proc. SPIE 9379, Complex Light and Optical Forces IX, 93790A (10 March 2015); doi: 10.1117/12.2079058
Show Author Affiliations
E. J. Galvez, Colgate Univ. (United States)
K. Beach, Colgate Univ. (United States)
Jonathan J. Zeosky, Colgate Univ. (United States)
B. Khajavi, Florida Atlantic Univ. (United States)

Published in SPIE Proceedings Vol. 9379:
Complex Light and Optical Forces IX
Enrique J. Galvez; Jesper Glückstad; David L. Andrews, Editor(s)

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