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
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.
tight focusing, azimuthally polarized light, optical vortex.
|Ministry of Education and Science of the Russian Federation
|Russian Foundation for Basic Research
|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).
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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
\by S.~S.~Stafeev, V.~V.~Kotlyar
\paper Tight focusing of a sector-wise azimuthally polarized optical vortex
\jour Computer Optics
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