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Visualizing polarization singularities in Bessel-Poincar? beams

Shvedov, Vladlen; Karpinski, Pawel; Sheng, Yan; Chen, Xin; Zhu, Weiren; Krolikowski, Wieslaw; Hnatovsky, Kyrylo (Cyril)

Description

We demonstrate that an annulus of light whose polarization is linear at each point, but the plane of polarization gradually rotates by π radians can be used to generate Bessel-Poincare beams. In any transverse plane this beam exhibits concentric rings of polarization singularities in the form of L-lines, where the polarization is purely linear. Although the Llines are invisible in terms of light intensity variations, we present a simple way to visualize them as dark rings around a sharp peak of...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/98609
Source: Optics Express
DOI: 10.1364/OE.23.012444

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