Comparative analysis of techniques for diagnostics of phase singularities

Felde, Ch. V.; Polyanski, P.; Bogatyryova, Halina V.

doi:10.3116/16091833/9/2/82/2008

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…By knowing the charge of the vortices in the vortex lattice, we can reconstruct the wavefront geometry without any ambiguities, for instance, the phase unwrapping problem, which is a characteristic of classical interferometry. There are many methods available to identify optical vortex charge for a single beam [50][51][52][53]. The methods for determining the charge sign distribution at vortex lattice are described in [54][55][56].…”

Section: Optical Vortex Latticementioning

confidence: 99%

Interferometry with Vortices

Senthilkumaran

Masajada

Sato

2012

International Journal of Optics

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Interference of optical beams with optical vortices is often encountered in singular optics. Since interferometry makes the phase observable by intensity measurement, it brings out a host of applications and helps to understand the optical vortex. In this article we present an optical vortex interferometer that can be used in optical testing and has the potential to increase the accuracy of measurements. In an optical vortex interferometer (OVI), a lattice of vortices is formed, and the movement of the cores of these vortices is tracked when one of the interfering beams is deformed. Instead of multiple vortices in an OVI, an isolated single vortex also finds applications in optical testing. Finally, singularity in scalar and vector fields is presented, and the relation between them is illustrated by the superposition of these beams.

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