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Proceedings Paper

Phase shifting technique for vortex points localization in optical vortex interferometer
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Paper Abstract

Optical vortex interferometer (OVI) is a useful tool to generate a regular lattice of optical vortices. The lattice is generated by the interference of the three plane waves. As was shown in earlier papers such a vortex lattice can be practically used in metrology. Application of optical vortex interferometer in metrology depends on the precision of the vortex points localization. In this paper we present a novel localization method, which uses the phase shifting technique applied to the additional fourth wave. Phase shift of the fourth wave doesn't change intensity in vortex points and increases intensity gradient in their vicinity. The applicability of this method was verified in the experiment.

Paper Details

Date Published: 20 November 2008
PDF: 6 pages
Proc. SPIE 7141, 16th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 71410Z (20 November 2008); doi: 10.1117/12.822380
Show Author Affiliations
Wojciech Frączek, Wrocław Univ. of Technolgy (Poland)
Agnieszka Popiołek-Masajada, Wrocław Univ. of Technolgy (Poland)
Jan Masajada, Wrocław Univ. of Technolgy (Poland)


Published in SPIE Proceedings Vol. 7141:
16th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Agnieszka Popiolek-Masajada; Elzbieta Jankowska; Waclaw Urbanczyk, Editor(s)

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