Results 21 to 30 of about 9,321,235 (188)
Tbit/s line-rate satellite feeder links enabled by coherent modulation and full-adaptive optics
Light: Science & Applications, 2023 Free-space optical (FSO) communication technologies constitute a solution to cope with the bandwidth demand of future satellite-ground networks. They may overcome the RF bottleneck and attain data rates in the order of Tbit/s with only a handful of ...
Yannik Horst +14 more
doaj +1 more source
Generalized Efficiency and the Uncertainty of Millimeter Wave Power Standard [PDF]
Advances in Radio Science, 2023 In the last decade, waveguide thermoelectric power sensors have been established as an alternative to thermistor mounts for millimeter wave power standards, and due to the detection principle and the nature of waveguides, the generalized efficiency is ...
W. K. Perangin-Angin +4 more
doaj +1 more source
Pseudo-electromagnetic fields in 3D topological semimetals [PDF]
Nature Reviews Physics, 2019 Dirac and Weyl semimetals react to position-dependent and time-dependent perturbations, such as strain, as if subject to emergent electromagnetic fields, known as pseudo-fields.
R. Ilan, A. Grushin, D. Pikulin
semanticscholar +1 more source
VSI electromagnetic fields [PDF]
The Fourteenth Marcel Grossmann Meeting, 2017 A $p$-form $F$ is VSI (i.e., all its scalar invariants of arbitrary order vanish) in a $n$-dimensional spacetime if and only if it is of type N, its multiple null direction $l$ is "degenerate Kundt", and $ _{l}F=0$. This recent result is reviewed in the present contribution and its main consequences are summarized.
Ortaggio, M. (Marcello) +1 more
openaire +5 more sources
Near-field radiation pattern distortion of antenna attached to wall in through-the-wall radar imaging [PDF]
Advances in Radio Science, 2013 No abstract available.
B. Cetin +2 more
doaj +1 more source
Holographic imaging of electromagnetic fields via electron-light quantum interference [PDF]
Science Advances, 2018 The quantum interference between ultrafast light and electron pulses enables the holographic reconstruction of nanoscale fields. Holography relies on the interference between a known reference and a signal of interest to reconstruct both the amplitude ...
I. Madan +9 more
semanticscholar +1 more source
Yield Optimization using Hybrid Gaussian Process Regression and a Genetic Multi-Objective Approach [PDF]
Advances in Radio Science, 2021 Quantification and minimization of uncertainty is an important task in the design of electromagnetic devices, which comes with high computational effort.
M. Fuhrländer +3 more
doaj +1 more source
Electromagnetic fields in jets [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 8 pages, 5 figures.
Donald Lynden-Bell, Blake D. Sherwin
openaire +4 more sources
Electron transfer in confined electromagnetic fields. [PDF]
Journal of Chemical Physics, 2019 The interaction between molecular (atomic) electron(s) and the vacuum field of a reflective cavity generates significant interest, thanks to the rapid developments in nanophotonics.
A. Semenov, A. Nitzan
semanticscholar +1 more source
Universal electromagnetic fields [PDF]
Classical and Quantum Gravity, 2018 We study universal electromagnetic (test) fields, i.e., p-forms fields F that solve simultaneously (virtually) any generalized electrodynamics (containing arbitrary powers and derivatives of F in the field equations) in n spacetime dimensions. One of the main results is a sufficient condition: any null F that solves Maxwell's equations in a Kundt ...
Vojtěch Pravda +3 more
openaire +5 more sources