Search Results - "Nalimov, A G"

Tight focusing of laser light using a chromium Fresnel zone plate by Kotlyar, V V, Stafeev, S S, Nalimov, A G, Kotlyar, M V, O'Faolain, L, Kozlova, E S

“…Using near-field scanning microscopy, we demonstrate that a 15-µm zone plate fabricated in a 70-nm chromium film sputtered on a glass substrate and having a…”
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Thin high numerical aperture metalens by Kotlyar, V V, Nalimov, A G, Stafeev, S S, Hu, Changyu, O'Faolain, L, Kotlyar, M V, Gibson, D, Song, S

“…We designed, fabricated, and characterized a thin metalens in an amorphous silicon film of diameter 30 µm, focal length equal to the incident wavelength 633…”
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Calculating the pressure force of the non-paraxial cylindrical Gaussian beam exerted upon a homogeneous circular-shaped cylinder by Kotlyar, V. V., Nalimov, A. G.

“…Forces exerted upon a dielectric cylinder of infinite length and arbitrary, or circular, cross-section by the non-paraxial cylindrical Gaussian beam are…”
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Effect of Optical “Dipoles” on the Topological Charge of a Beam by Nalimov, A G, Kotlyar, V V

“…In this work, using the Rayleigh-Sommerfeld integral and the Berry formula, the topological charge (TC) of a Gaussian optical vortex with an initial fractional…”
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Microlens-aided focusing of linearly and azimuthally polarized laser light by Stafeev, S S, Nalimov, A G, Kotlyar, M V, Gibson, D, Song, S, O'Faolain, L, Kotlyar, V V

“…We have investigated a four-sector transmission polarization converter (4-SPC) for a wavelength of 633 nm, that enables the conversion of a linearly polarized…”
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Superposition of Two Converging and Diverging Coaxial Hypergeometric Beams by Kotlyar, V. V., Kovalev, A. A., Nalimov, A. G.

“…The diffraction of elegant vortex hypergeometric (HyG) laser beams with a parabolic initial wavefront in a homogeneous medium is considered. While HyG beams…”
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Tight Focusing of a Second-order Cylindrical Vector Beam by Stafeev, S. S., Nalimov, A. G., Kotlyar, V. V.

“…In this paper we have investigated the tight focusing of a second-order cylindrical vector beam. It was shown numerically by Richarsd-Wolf formulae and…”
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Backward Energy Flux in Sharp Focus of Beams with Linear and Circular Polarization by Kotlyar, V. V., Nalimov, A. G., Stafeev, S. S.

“…Using the FDTD-aided numerical simulation, we show that uniform linearly or circularly polarized light passing through the described optical metasurface and…”
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Sector Metalens for Sharp Focusing of Laser Light by Stafeev, S. S., Nalimov, A. G., O'Faolain, L., Kotlyar, V. V.

“…In this paper we have investigated a 16-sector metalens fabricated in a thin film of amorphous silicon and consisting from a set of subwavelength binary…”
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Analytical expression for radiation forces on a dielectric cylinder illuminated by a cylindrical Gaussian beam by Kotlyar, V V, Nalimov, A G

“…Radiation forces exerted upon a dielectric, circular-shaped cylinder of infinite length illuminated by a non-paraxial cylindrical Gaussian beam are considered…”
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A vector optical vortex generated and focused using a metalens by Kotlyar, V., Nalimov, A.

“…Using a FDTD-aided numerical simulation we show that a sharp focal spot can be generated by a spiral metalens made of amorphous silicon, with unit topological…”
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Evolution of a fractional-charge optical vortex upon free-space propagation by Kotlyar, V.V., Nalimov, A.G.

“…Previously, it has been demonstrated theoretically (J. Opt. 6, 259 (2004)) and experimentally (Opt Express 19, 5760 (2011)) that upon the free-space…”
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Optical force acting on a particle in the presence of a backward energy flow near the focus of a gradient lens by Nalimov, A.G.

“…We show that a 70-nm dielectric nanoparticle placed on the optical axis near the surface (at a distance less than 100 nm) of a high-NA gradient microlens made…”
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Energy flux of a vortex field focused using a secant gradient lens by Nalimov, A.G.

“…In this paper we simulated the focusing of left circular polarized beam with a second order phase vortex and a second-order cylindrical vector beam by a…”
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Rotation of an ellipsoidal dielectric particle in the focus of a circularly polarized gaussian beam by Nalimov, A.G., Kotlyar, V.V.

“…Forces and torque acting on an ellipsoidal dielectric particle in the focus of a circularly polarized spherical wave are considered. The simulation is carried…”
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A metalens for detecting fractional-order optical vortices by Nalimov, A.G.

“…In this work, a metalens for detecting an incident field with a fractional topological charge ranging from – 2 to 0 is proposed. The metalens is based on a…”
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Focusing of linearly polarized optical vortex and a Hall effect by Kotlyar, V.V., Kovalev, A.A., Nalimov, A.G.

“…Polarization of a higher-order cylindrical vector beam (CVB) is known to be locally linear. The higher the beam order, the larger number of full circles the…”
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Topological charge of optical vortices in the far field with an initial fractional charge: optical "dipoles" by Nalimov, A.G., Kotlyar, V.V.

“…In this work, using the Rayleigh-Sommerfeld integral and the Berry formula, the topological charge (TC) of a Gaussian optical vortex with an initial fractional…”
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Multifocal metalens for detecting several topological charges at different wavelengths by Nalimov, A.G., Kotlyar, V.V.

“…A combined high-aperture metalens in a thin silicon nitride film, which consists of two inclined sector metalens, is considered. Each sector metalens consists…”
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Converting an nth-order edge dislocation to a set of optical vortices by Kotlyar, V.V., Kovalev, A.A., Nalimov, A.G.

“…We show theoretically that an astigmatic transformation of an edge dislocation (a straight line of zero intensity) of the n-th order forms n elliptical optical…”
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