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Computer Optics, 2016, Volume 40, Issue 4, Pages 588–593 (Mi co254)  

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3D simulation of focusing a laser beam by a dielectric conical microaxicon

S. A. Degtyarevab

a Samara National Research University, Samara, Russia
b Image Processing Systems Institute îf RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Samara, Russia

Abstract: In this work, using a finite element method implemented we simulate in the Comsol software focusing a TE-polarized Gaussian beam by 3D dielectric conical microaxicon tapers with smaller-than-30-degrees vertex angles. The simulation results have shown that, as is the case with the 2D axicons, with minor changes in a vertex angle, the 3D axicon can alternatively show either focusing or defocusing properties. However, the angle intervals in which the 2D and 3D axicons show focusing or defocusing properties are different.

Keywords: dielectric conical axicon, total internal reflection (TIR), real and imaginary focus, finite element method.

Funding Agency Grant Number
Ministry of Education and Science of the Russian Federation
Russian Foundation for Basic Research 16-37-00241-ìîë_à
16-07-00825-à
The work was supported by the Russian Federation Ministry of Education and Science, as well as RFBR 16-37-00241, 16-07-00825 grants.


DOI: https://doi.org/10.18287/2412-6179-2016-40-4-588-593

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Full text: http://www.computeroptics.smr.ru/.../400419.html
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Received: 19.08.2016
Accepted:26.08.2016

Citation: S. A. Degtyarev, “3D simulation of focusing a laser beam by a dielectric conical microaxicon”, Computer Optics, 40:4 (2016), 588–593

Citation in format AMSBIB
\Bibitem{Deg16}
\by S.~A.~Degtyarev
\paper 3D simulation of focusing a laser beam by a dielectric conical microaxicon
\jour Computer Optics
\yr 2016
\vol 40
\issue 4
\pages 588--593
\mathnet{http://mi.mathnet.ru/co254}
\crossref{https://doi.org/10.18287/2412-6179-2016-40-4-588-593}


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