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This article is cited in 20 scientific papers (total in 20 papers)
OPTO-IT
Longitudinal component of the Poynting vector of a tightly focused optical vortex with circular polarization
S. S. Stafeevab, A. G. Nalimovab a Samara National Research University, Samara, Russia
b Image Processing Systems Institute of the RAS - Branch of the FSRC "Crystallography and Photonics" RAS, Samara, Russia
Abstract:
We numerically investigated the focusing of optical vortices with the wavelength $\lambda = 532 nm$ and right-hand circular polarization by using a diffractive lens with the numerical aperture NA = 0.95. The simulation was carried out using the Richards-Wolf formulae and the FDTD-method. The focusing of optical vortices with topological charges equal to $\pm 1$ and $\pm 2$ was investigated. It was shown that the focusing of optical vortices with circular polarization by a wide-aperture diffractive lens can produce an intensity distribution with the negative value of the longitudinal component of the Poynting vector.
Keywords:
Richards-Wolf formulae, FDTD-method, optical vortex, tractor beam.
Received: 26.02.2018 Accepted: 20.04.2018
Citation:
S. S. Stafeev, A. G. Nalimov, “Longitudinal component of the Poynting vector of a tightly focused optical vortex with circular polarization”, Computer Optics, 42:2 (2018), 190–196
Linking options:
https://www.mathnet.ru/eng/co493 https://www.mathnet.ru/eng/co/v42/i2/p190
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Abstract page: | 221 | Full-text PDF : | 106 | References: | 16 |
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