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Focusing a second-order cylindrical vector beam with a gradient index Mikaelian lens

S.S. Stafeev 1,2, E.S. Kozlova 1,2, A.G. Nalimov 1,2

1 IPSI RAS – Branch of the FSRC "Crystallography and Photonics" RAS,

Molodogvardeyskaya 151, 443001, Samara, Russia,

2 Samara National Research University, Moskovskoye shosse, 34, 443086, Samara, Russia

 PDF, 603 kB

DOI: 10.18287/2412-6179-CO-633

Pages: 29-33.

Full text of article: Russian language.

Abstract:
In this paper, we numerically simulate the focusing of a second-order cylindrical vector beam with a gradient index Mikaelian lens. It is shown that the lens forms a region of the reverse energy flow near its output surface. If the lens has an on-axis micropit, the region of the direct energy flow can be confined within the lens material, whereas that of the reverse energy flow is put out in free space.

Keywords:
Poynting vector, energy backflow, gradient index lens, cylindrical vector beam, scattering force.

Citation:
Stafeev SS, Kozlova ES, Nalimov AG. Focusing a second-order cylindrical vector beam with a gradient index Mikaelian lens. Computer Optics 2020; 44(1): 29-33. DOI: 10.18287/2412-6179-CO-633.

Acknowledgements:
The work was partly funded by the Russian Science Foundation under grant # 18-07-01122 ("Gradient index lens"), the Russian Foundation for Basic Research under grant # 18-19-00595 ("Gradient index lens with metallic layer"), and grant # 18-07-01380 (" Gradient index lens with a micropit"), and the RF Ministry of Science and Higher Education within a state contract with the "Crystallography and Photonics" Research Center of the RAS under agreement ("Introduction").

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