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Proceedings Paper

Imaging optical singularities: Understanding the duality of C-points and optical vortices
Author(s): Enrique J. Galvez; Brett L. Rojec; Kevin R. McCullough
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Paper Abstract

We image optical singularities by exploiting the connection between scalar and vector fields. We examine the sensitivity of optical vortices to perturbations and suggest a method of study via imaging polarimetry of the optical field. This is possible by converting optical vortices to polarization-singularity C-points. We present the deliberate creation of C-points using a superposition of two circularly polarized beams of opposite helicity, with a phase vortex in one and a planar wavefront in the other. We present a theoretical analysis and measurements of the transformation of C-points from lemon to star, going through the monstar stage. We do this by varying the phase gradient of the optical vortex.

Paper Details

Date Published: 5 March 2013
PDF: 10 pages
Proc. SPIE 8637, Complex Light and Optical Forces VII, 863706 (5 March 2013); doi: 10.1117/12.2005880
Show Author Affiliations
Enrique J. Galvez, Colgate Univ. (United States)
Brett L. Rojec, Colgate Univ. (United States)
Kevin R. McCullough, Colgate Univ. (United States)

Published in SPIE Proceedings Vol. 8637:
Complex Light and Optical Forces VII
Jesper Glückstad; David L. Andrews; Enrique J. Galvez, Editor(s)

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