Results 41 to 50 of about 1,764,811 (237)
Linear to circular polarization conversion in the sharp focus of an optical vortex [PDF]
Компьютерная оптика, 2021 We have shown that when sharply focusing a linearly polarized optical vortex with topological charge 2, in the near-axis region of the focal plane, not only does a reverse energy flow (the negative on-axis projection of the Poynting vector) occur, but ...
A.G. Nalimov, S.S. Stafeev
doaj +1 more source
Comparison of Poynting’s vector and the power flow used in electrical engineering
AIP Advances, 2022 This paper will analyze how the energy flux of Poynting’s vector is compared to the power flow in electrical engineering, where the power, instead, is defined by voltages and currents.
G. Mörée, M. Leijon
semanticscholar +1 more source
Generalized Poincaré Beams in Tight Focus
Photonics, 2023 We study the tight focus of generalized (hybrid) Poincaré beams. A conventional Poincaré beam is a coaxial superposition of two optical vortices, one with left circular polarization and a topological charge (TC) of m, while the other has a right circular
Victor V. Kotlyar +2 more
doaj +1 more source
Computer optics, 2018 We numerically investigated the focusing of optical vortices with the wavelength ? = 532 nm and right-hand circular polarization by using a diffractive lens with the numerical aperture NA = 0.95.
S. Stafeev, A. Nalimov
semanticscholar +1 more source
Vortex nucleation and evolution in parametric wave mixing [PDF]
, 1999 We predict a variety of new phenomena, that includes the spontaneous nucleation of multiple vortex twins, vortex rotation and drift, vortex-antivortex interaction and annihilation, and formation of quasi-aligned patterns of single-charge vortices.
Molina Terriza, Gabriel +1 more
core +1 more source
, 2004 It is shown that the generally accepted definition of the Poynting vector and the energy flux vector defined by means of the energy density of the electromagnetic field (Umov vector) lead to the prediction of the different results touching ...
Chubykalo, Andrew +2 more
core +1 more source
Characterization of silicon nanowire by use of full-vectorial finite element method. [PDF]
, 2010 We have carried out a rigorous H-field-based full-vectorial modal analysis and used it to characterize, more accurately, the abrupt dielectric discontinuity of a high index contrast optical waveguide.
Aden, Y. +5 more
core +1 more source
Transverse intensity at the tight focus of a second-order cylindrical vector beam
Компьютерная оптика, 2021 In this paper, an effect of a reverse energy flow at the focus of a second-order cylindrical vector beam which passed through amplitude zone plate was investigated with a scanning near-field optical microscope.
E.S. Kozlova +4 more
doaj +1 more source
Interaction of Charged 3D Soliton with Coulomb Center
, 1996 The Einstein - de Broglie particle-soliton concept is applied to simulate stationary states of an electron in a hydrogen atom. According to this concept, the electron is described by the localized regular solutions to some nonlinear equations.
Adkins +30 more
core +2 more sources
Poynting vector, energy density and energy velocity in anomalous dispersion medium [PDF]
, 2001 The Poynting vector, energy density and energy velocity of light pulses propagating in anomalous dispersion medium (used in WKD-like experiments) are calculated.
A. Dogariu +9 more
core +3 more sources