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Computer Optics, 2017, Volume 41, Issue 2, Pages 147–154 (Mi co369)  

OPTO-IT

Tight focusing of a sector-wise azimuthally polarized optical vortex

S. S. Stafeevab, V. V. Kotlyarab

a Samara National Research University, Samara, Russia
b Image Processing Systems Institute of RAS - Branch of the FSRC "Crystallography and Photonics" RAS, Samara, Russia

Abstract: In this article we numerically investigated tightly focusing an optical vortex with sector-wise azimuthal polarization by a Fresnel zone plate with numerical aperture NA = 0.95. The focal spot produced by a six-sector beam was shown practically not to differ from the focus produced by an ideal azimuthally polarized optical vortex, with the difference in the size of the focal spots not exceeding 0.001 of the wavelength of light.

Keywords: tight focusing, azimuthally polarized light, optical vortex.

Funding Agency Grant Number
Ministry of Education and Science of the Russian Federation -4128.2016.9
-9019.2016.2
Russian Foundation for Basic Research 15-07-01174-
15-47-02492-__
16-29-11698-_
16-47-630483-
The work was partially funded by the Russian Federation Ministry of Education and Science, RF Presidential grants for support of leading scientific schools (NSh-4128.2016.9) and young candidate of science (MK-9019.2016.2), and the Russian Foundation of Basic Research grants (Nos. 15-07-01174, 15-47-02492, 16-29-11698, and 16-47-630483).


DOI: https://doi.org/10.18287/2412-6179-2017-41-2-147-154

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Full text: http://www.computeroptics.smr.ru/.../410201.html
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Received: 26.01.2017
Accepted:27.03.2017

Citation: S. S. Stafeev, V. V. Kotlyar, “Tight focusing of a sector-wise azimuthally polarized optical vortex”, Computer Optics, 41:2 (2017), 147–154

Citation in format AMSBIB
\Bibitem{StaKot17}
\by S.~S.~Stafeev, V.~V.~Kotlyar
\paper Tight focusing of a sector-wise azimuthally polarized optical vortex
\jour Computer Optics
\yr 2017
\vol 41
\issue 2
\pages 147--154
\mathnet{http://mi.mathnet.ru/co369}
\crossref{https://doi.org/10.18287/2412-6179-2017-41-2-147-154}


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