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Computer Optics, 2018, Volume 42, Issue 4, Pages 527–533
DOI: https://doi.org/10.18287/2412-6179-2018-42-4-527-533
(Mi co534)
 

This article is cited in 2 scientific papers (total in 2 papers)

OPTO-IT

A spirally rotating backward flow of light

V. V. Kotlyarab, A. G. Nalimovab

a Samara National Research University, 34, Moskovskoye shosse, Samara, 443086, Samara, Russia
b IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Molodogvardeyskaya 151, 443001, Samara, Russia
Full-text PDF (491 kB) Citations (2)
References:
Abstract: Using Richards-Wolf formulas, we show that when a left-hand circularly polarized optical vortex with the topological charge 3 is sharply focused in an aplanatic system, a backward near-axis energy flow is observed in the focal plane. While being zero on the axis, the backward flow is only 2-3 times smaller in magnitude than the incident energy flow coming to the focus. It is also shown that near the optical axis the reverse flow propagates spiraling counter-clockwise about the optical axis. The presence of the near-axis backward flow of energy is also shown by the FDTD-aided numerical simulation of diffraction of a circularly polarized plane wave by a third-order spiral zone plate with the NA about 1. A Rayleigh microparticle captured in the focus vicinity is expected to move in the opposite direction to the beam propagation.
Keywords: backward energy flow, optical vortex, rotating beams, Umov–Poynting vector.
Funding agency Grant number
Ministry of Education and Science of the Russian Federation 007-ÃÇ/×3363/26
Russian Foundation for Basic Research 16-47-630483 ð_à
Russian Science Foundation 17-19-01186
The work was partly funded by the Federal Agency for Scientific Organizations under contract No. 007-GZ/Ch3363/26 (“FDTD-aided numerical simulation”), Russian Foundation for Basic Research Grants under grant No. 16-47-630483 (“Spirally rotating backward near-axis flow of energy”), and Russian Science Foundation under grant No. 17-19-01186 (“Longitudinal projection of the Pointing vector”).
Received: 29.03.2018
Accepted: 11.04.2018
Document Type: Article
Language: Russian
Citation: V. V. Kotlyar, A. G. Nalimov, “A spirally rotating backward flow of light”, Computer Optics, 42:4 (2018), 527–533
Citation in format AMSBIB
\Bibitem{KotNal18}
\by V.~V.~Kotlyar, A.~G.~Nalimov
\paper A spirally rotating backward flow of light
\jour Computer Optics
\yr 2018
\vol 42
\issue 4
\pages 527--533
\mathnet{http://mi.mathnet.ru/co534}
\crossref{https://doi.org/10.18287/2412-6179-2018-42-4-527-533}
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  • https://www.mathnet.ru/eng/co/v42/i4/p527
  • This publication is cited in the following 2 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Computer Optics
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    References:16
     
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