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Controlling Electromagnetic Fields [PDF]

open access: yesScience, 2006
Using the freedom of design that metamaterials provide, we show how electromagnetic fields can be redirected at will and propose a design strategy. The conserved fields—electric displacement field D , magnetic induction field B , and Poynting vector B —are all ...
John B. Pendry   +2 more
openaire   +5 more sources

Charged particle motion and radiation in strong electromagnetic fields [PDF]

open access: yesReviews of Modern Physics, 2021
The dynamics of charged particles in electromagnetic fields is an essential component of understanding the most extreme environments in our Universe. In electromagnetic fields of sufficient magnitude, radiation emission dominates the particle motion and ...
A. Gonoskov   +3 more
semanticscholar   +1 more source

Nyquist Sampling and Degrees of Freedom of Electromagnetic Fields [PDF]

open access: yesIEEE Transactions on Signal Processing, 2021
A signal space approach is presented to study the Nyquist sampling, number of degrees of freedom and reconstruction of an electromagnetic field under arbitrary scattering conditions.
Andrea Pizzo   +3 more
semanticscholar   +1 more source

Assessment of Human Exposure to Electromagnetic Fields: Review and Future Directions

open access: yesIEEE transactions on electromagnetic compatibility (Print), 2021
This article reviews recent standardization activities and scientific studies related to the assessment of human exposure to electromagnetic fields (EMF).
A. Hirata   +12 more
semanticscholar   +1 more source

Test setup using DC metering approach for loss measurements of inductive components – principle, characterization, validation and application

open access: yesIET Power Electronics, 2021
Accurate loss estimation of magnetic components is crucial for power electronics engineers. Unfortunately, loss predictions remain a quite challenging task, as these depend on many parameters and manufacturers typically do not deliver a sufficient ...
Benedikt Kohlhepp   +3 more
doaj   +1 more source

TORSION AND THE ELECTROMAGNETIC FIELD [PDF]

open access: yesInternational Journal of Modern Physics D, 1999
In the framework of the teleparallel equivalent of general relativity, we study the dynamics of a gravitationally coupled electromagnetic field. It is shown that the electromagnetic field is able not only to couple to torsion, but also, through its energy–momentum tensor, produce torsion.
De Andrade, V. C., Pereira, J. G.
openaire   +4 more sources

Plasmonic, photonic, or hybrid? Reviewing waveguide geometries for electro-optic modulators

open access: yesAPL Photonics, 2023
Electro-optic modulators are key elements in high-speed optical telecommunication links and preferably rely on materials with a linear electro-optic effect.
Andreas Messner   +5 more
doaj   +1 more source

Invariants of the electromagnetic field [PDF]

open access: yesJournal of Mathematical Physics, 2014
We present a constructive proof that, in electrodynamics, all of the gauge-invariant Lorentz scalars and pseudoscalars can be expressed as functions of the quadratic ones.
Escobar, C. A., Urrutia, L. F.
openaire   +4 more sources

Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz).

open access: yesHealth Physics, 2020
Radiofrequency electromagnetic fields (EMFs) are used to enable a number of modern devices, including mobile telecommunications infrastructure and phones, Wi-Fi, and Bluetooth. As radiofrequency EMFs at sufficiently high power levels can adversely affect

semanticscholar   +1 more source

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