S. S. Stafeev, E. S. Kozlova, A. G. Nalimov, “Focusing a second-order cylindrical vector beam with a gradient index Mikaelian lens”, Computer Optics, 2020, Volume 44, Issue 1,Pages <nobr>29

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OPTO-IT

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

S. S. Stafeev^ab, E. S. Kozlova^ab, A. G. Nalimov^ba

^a Samara National Research University, Moskovskoye shosse, 34, 443086, Samara, Russia
^b IPSI RAS – Branch of the FSRC "Crystallography and Photonics" RAS, Molodogvardeyskaya 151, 443001, Samara, Russia

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.

Received: 17.09.2019
Accepted: 30.10.2019

DOI: 10.18287/2412-6179-CO-633