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- W1996946588 abstract "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-Poincaré 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 L-lines are invisible in terms of light intensity variations, we present a simple way to visualize them as dark rings around a sharp peak of intensity in the beam center. To do this we use a segmented polarizer whose transmission axes are oriented differently in each segment. The radius of the first L-line is always smaller than the radius of the central disk of the zero-order Bessel beam that would be produced if the annulus were homogeneously polarized and had no phase circulation along it." @default.
- W1996946588 created "2016-06-24" @default.
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- W1996946588 date "2015-05-01" @default.
- W1996946588 modified "2023-10-17" @default.
- W1996946588 title "Visualizing polarization singularities in Bessel-Poincaré beams" @default.
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- W1996946588 doi "https://doi.org/10.1364/oe.23.012444" @default.
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