We present a simple method to check the exact realization of a radially polarized light beam by means of a vortex-sensing diffraction grating. The use of this grating easily allows the determination of the topological charges included in each of the two circular polarization components of the incident beam. Therefore a pure radially polarized beam can be easily distinguished from a pseudo-radially polarized beam. Experimental results are presented with radial beams generated with two different devices: a patterned radial polarizer and a specially designed liquid crystal device. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.
CITATION STYLE
Davis, J. A., Cottrell, D. M., Schoonover, B. C., Cushing, J. B., Albero, J., & Moreno, I. (2013). Vortex sensing analysis of radially and pseudo-radially polarized beams. Optical Engineering, 52(5), 050502. https://doi.org/10.1117/1.oe.52.5.050502
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