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Computer Optics, 2018, Volume 42, Issue 5, Pages 744–750
DOI: https://doi.org/10.18287/2412-6179-2018-42-5-744-750
(Mi co556)
 

This article is cited in 15 scientific papers (total in 15 papers)

OPTO-IT

Energy backflow in a focal spot of the cylindrical vector beam

S. S. Stafeevab, A. G. Nalimovba, V. V. Kotlyarba

a IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Molodogvardeyskaya 151, 443001, Samara, Russia
b Samara National Research University, 34, Moskovskoye shosse, Samara, 443086, Samara, Russia
References:
Abstract: Using Richards-Wolf formulae it is shown that a tightly focused azimuthally-radially polarized m-th order laser beam with an arbitrary apodization function produces a reverse energy flow in the focal plane ($m=2$). If $m=3$, the reverse energy flow on the axis is equal to zero, increasing in the axis vicinity as the square of the distance to the axis. The azimuthally-radially polarized beam of the m-th order is an example of a polarization vortex. Previously, the reverse energy flow in the focus was obtained only for circularly polarized vortex beams with the topological charge m. Using the FDTD method and the Richards-Wolf formulae, we show numerically that in the focus of a zone plate such laser beams produce regions where the Poynting vector is opposite to the direction of the beam propagation.
Keywords: Richards-Wolf formulae, FDTD-method, polarization vortex, energy backflow.
Funding agency Grant number
Russian Science Foundation 18-19-00595
Russian Academy of Sciences - Federal Agency for Scientific Organizations 007-ÃÇ/×3363/26
Russian Foundation for Basic Research 17-47-630417 ð_à
17-47-630420 ð_à
17-42-630008 ð_à
18-07-01122 à
18-07-01380 à
18-29-20003 à
This work was partly supported by the Russian Science Foundation under grant No. 18-19-00595 (theoretical investigation), by Ministry of Science and Higher Education within the State assignment FSRC “Crystallography and Photonics” RAS under Agreement 007-ÃÇ/×3363/26 (numerical simulation using Richards-Wolf formulae), and the Russian Foundation for Basic Research under grants Nos. 17-47-630417, 17-47-630420, 17-42-630008, 18-07-01122, 18-07-01380, and 18-29-20003 (FDTD-aided numerical simulation).
Received: 28.05.2018
Accepted: 18.07.2018
Document Type: Article
Language: Russian
Citation: S. S. Stafeev, A. G. Nalimov, V. V. Kotlyar, “Energy backflow in a focal spot of the cylindrical vector beam”, Computer Optics, 42:5 (2018), 744–750
Citation in format AMSBIB
\Bibitem{StaNalKot18}
\by S.~S.~Stafeev, A.~G.~Nalimov, V.~V.~Kotlyar
\paper Energy backflow in a focal spot of the cylindrical vector beam
\jour Computer Optics
\yr 2018
\vol 42
\issue 5
\pages 744--750
\mathnet{http://mi.mathnet.ru/co556}
\crossref{https://doi.org/10.18287/2412-6179-2018-42-5-744-750}
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  • This publication is cited in the following 15 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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