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Opt Express. 2010 Mar 29;18(7):7173-83. doi: 10.1364/OE.18.007173.

Decomposition of radially and azimuthally polarized beams using a circular-polarization and vortex-sensing diffraction grating.

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Departamento de Ciencia de Materiales, Optica y Tecnología Electrónica, Universidad Miguel Hernández, 03202 Elche, Spain.


Both radially polarized and azimuthally polarized beams can be decomposed into linear combinations of circularly polarized vortex beams having opposite vortex charges. We show experimental evidence for this decomposition using a specially designed vortex sensing diffraction grating that generates multiple vortex patterns having different senses of circularly polarization in the different diffracted orders. When this grating is illuminated with a radially or azimuthally polarized beam, the grating separates the components into different diffracted orders. Experimental results are shown.

[Indexed for MEDLINE]

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