Results 11 to 20 of about 1,456 (141)
Topological Structures of Energy Flow: Poynting Vector Skyrmions
Physical Review Letters, 2023 Topological properties of energy flow of light are fundamentally interesting and have rich practical applications in optical manipulations. Here, skyrmion-like structures formed by Poynting vectors are unveiled in the focal region of a pair of counter-propagating cylindrical vector vortex beams in free space.
Sicong Wang +9 more
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Poynting vector, super-Poynting vector, and principal observers in electromagnetism and general relativity [PDF]
Classical and Quantum Gravity, 2021 Abstract In electromagnetism, the concept of Poynting vector as measured by an observer is well known. A mathematical analogue in general relativity is the super-Poynting vector of the Weyl tensor. Observers for which the (super-)Poynting vector vanishes are called principal
Lode Wylleman +2 more
openaire +2 more sources
Geophysical Research Letters, 2023 A sheath impedance model has recently been developed to describe how the variable coupling impedance between the Van Allen Probes instrumentation and the ambient plasma affects both the amplitude and phase of electric field wave measurements.
D. P. Hartley +7 more
doaj +1 more source
Photonics, 2021 Recently, there has been increased interest in the shaping of light fields with an inverse energy flux to guide optically trapped nano- and microparticles towards a radiation source.
Andrey V. Ustinov +2 more
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Complex Poynting vector in gyromagnetic media and its impact on power flow in guided modes
, 2023 In this paper, we show the relation between the time-varying spinning nature of the instantaneous Poynting vector and the phasor form of the complex Poynting vector in the bulk of the gyromagnetic medium.
Sen, Rajarshi, Pendharker, Sarang
core +2 more sources
Results in Physics, 2020 The aim of this paper is to represent the trajectory’s curvature related to the power density of the electromagnetic wave that has been widely described as the Poynting vector.
Gabriele Barbaraci
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Angle-Weighted Reverse Time Migration With Wavefield Decomposition Based on the Optical Flow Vector
Frontiers in Earth Science, 2021 Reverse time migration (RTM) is based on the two-way wave equation, so its imaging results obtained by conventional zero-lag cross-correlation imaging conditions contain a lot of low-wavenumber noises.
Chuang Xie +12 more
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Poynting vector controversy in axion modified electrodynamics
, 2022 The most sensitive haloscopes that search for axion dark matter through the two photon electromagnetic anomaly, convert axions into photons through the mixing of axions with a large DC magnetic field.
McAllister, Ben T +2 more
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Simulación en Easy Java para el campo de Poynting de un circuito circular [PDF]
Revista Brasileira de Ensino de Física, 2020 Las simulaciones de fenómenos físicos mediante computadora ocupan hoy en día, un buen lugar dentro de las técnicas empleadas para innovar a la enseñanza tradicional de la Física. En este documento, describimos la manera de realizar una simulación en Easy
Rubén Sánchez-Sánchez, César Mora
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Full-Vectorial Light Propagation Simulation of Optimized Beams in Scattering Media
Photonics, 2023 Volumetric scattering prevents imaging modalities in biomedical optics from imaging deep inside tissue. The optimization of the incident wavefront has the potential to improve these imaging modalities.
Felix Ott +2 more
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