Results 41 to 50 of about 906,320 (164)
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
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DISPERSIÓN DE LUZ POR UNA NANOPARTÍCULA DE PLATA CON FORMA ESFEROIDAL PROLATA [PDF]
Epistemus, 2016 Usando el método de diferencias finitas en el dominio del tiempo se estudia la incidencia y dispersión de radiación electromagnética de una nanopartícula de plata con forma esferoidal prolata.
Arnulfo Castellanos Moreno +1 more
doaj +2 more sources
Measuring of Transverse Energy Flows in a Focus of an Aluminum Lens
Photonics, 2022 In this study, we theoretically and experimentally investigate the propagation of a second-order cylindrical vector beam through an aluminum lens which forms a tight focus at the distance of the wavelength. Simulation by the finite-difference time-domain
Elena Kozlova +5 more
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Losses and orbital part of the Poynting vector of air-core modes in hollow-core fibers
Компьютерная оптикаIn our earlier works, we investigated a relationship between the formation of vortices in the transverse component of the Poynting vector of core modes and the regimes of strong localization of these modes in solid core micro-structured optical fibers ...
G.K. Alagashev +2 more
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Extrinsic Limitations of Stealthy Hyperuniform Devices
Advanced Optical Materials, EarlyView.Stealthy hyperuniform devices exhibit a scattering‐free angular region whose extent follows a simple quenching equation. Experimental measurements confirm this prediction but reveal quenching efficiencies far below theoretical expectations. Multiple scattering and finite‐size effects are quantified, establishing realistic performance limits for ...
Yuhao Xu +5 more
wiley +1 more source
Visible‐Blind Near‐Infrared Organic Vision Sensors for Imaging in Adverse Environmental Conditions
Advanced Optical Materials, EarlyView.This work presents high‐performance visible‐blind NIR OPDs enabled by a multilayer optical modulation layer. The devices achieve strong visible‐light suppression and enhanced NIR sensitivity, enabling robust imaging in foggy or low‐light environments.
Baozhong Deng +9 more
wiley +1 more source
Photonics, 2023 Using the Richards–Wolf diffraction integral, the longitudinal energy evolution on the focal plane of the fractional order vector vortex (FOVV) beams was studied. These beams possessed a vortex topological charge n and a polarization topological charge m,
Yan Wu, Xiaobo Hu, Yuhua Li, Ruipin Chen
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Advanced Science, EarlyView.Infrared metasurface‐guided waves (IR‐MGW) scattered by a time interface (TI) induced by rapid, localized free‐carrier generation can be efficiently rectified to generate strong, persistent magnetic fields. We develop a rigorous, theoretical model to study a time‐varying, dispersive medium and uncover the redistribution of the initial energy of the IR ...
Shivaksh Rawat +2 more
wiley +1 more source
We are all in Guantanamo: State Terror and the Case of Mamdouh Habib [PDF]
, 2009 Mamdouh Habib was one of two Australians detained at the US prison camp in its naval facility at Guantánamo Bay, Cuba. Habib was kidnapped in October 2001 from a bus bound for Karachi, after intervening, as what might be described as a solicitous ...
Poynting, Scott +2 more
core
PhotonicsThis work discusses the behavior of transverse energy fluxes of the fundamental core mode of a holey fibers and a photonic band gap fibers when the polarization state of this mode changes.
Andrey Pryamikov
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