Results 21 to 30 of about 524,074 (324)

Rotation of electromagnetic fields and the nature of optical angular momentum [PDF]

, 2010
The association of spin and orbital angular momenta of light with its polarization and helical phase fronts is now well established. The problems in linking this with electromagnetic theory, as expressed in Maxwell's equations, are rather less well known.
Barut AO, Bateman H, Biedenharn LC, Cohen-Tannoudji C, Heaviside O, Jackson JD, Jauch JM, Milonni PW, Power EA, Rose ME, Simmons JW, Stephen M. Barnett, Yilmaz H   +12 more
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Advanced Modelling Techniques for Resonator Based Dielectric and Semiconductor Materials Characterization

Applied Sciences, 2020
This article reports recent developments in modelling based on Finite Difference Time Domain (FDTD) and Finite Element Method (FEM) for dielectric resonator material measurement setups. In contrast to the methods of the dielectric resonator design, where
Arif Can Gungor, Marzena Olszewska-Placha, Malgorzata Celuch, Jasmin Smajic, Juerg Leuthold   +4 more
doaj   +1 more source

A System for Monitoring of Broadband FMR Phenomenon in Low-Carbon Steel Films Subjected to Deformations

Sensors, 2021
Stresses and deformations are some of the main factors influencing the mechanical and magnetic properties of steels. Resonance methods, based on the utilization of high-frequency electromagnetic fields, are the ones that can provide information about the
Grzegorz Psuj, Przemyslaw Lopato, Michal Maciusowicz, Michal Herbko   +3 more
doaj   +1 more source

Light in Memristive Atomic Scale Junction - Memristors go Photonics [PDF]

EPJ Web of Conferences, 2023
Memristive devices are an emerging new type of devices operating at the scale of a few or even single atoms. They largely exploited for emulating the electrical function of synapses and are thus currently investigated for performing in-memory and ...
Malchow Konstantin, Hamdad Sarah, Cheng Bojun, Zellweger Till, Leuthold Juerg, Bouhelier Alexandre   +5 more
doaj   +1 more source

Waveguide coupled III-V photodiodes monolithically integrated on Si

Nature Communications, 2022
To realize on-chip optical communication schemes based on silicon, the integration of waveguides onto III-V devices must be achieved. Here, the authors report waveguide-coupled III-V heterostructure photodiodes monolithically integrated on silicon ...
Pengyan Wen, Preksha Tiwari, Svenja Mauthe, Heinz Schmid, Marilyne Sousa, Markus Scherrer, Michael Baumann, Bertold Ian Bitachon, Juerg Leuthold, Bernd Gotsmann, Kirsten E. Moselund   +10 more
doaj   +1 more source

Power module heat sink design optimization with ensembles of data-driven polynomial chaos surrogate models

e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2022
We consider the problem of optimizing the design of a heat sink used for cooling an insulated gate bipolar transistor (IGBT) power module. The thermal behavior of the heat sink is originally estimated using a high-fidelity computational fluid dynamics ...
Dimitrios Loukrezis, Herbert De Gersem
doaj   +1 more source

Eddy current testing of metallic sheets with defects using force measurements [PDF]

Serbian Journal of Electrical Engineering, 2008
The problem of determining defects in structures using eddy current methods was investigated. The goal of this work is to demonstrate that the forces generated by the eddy currents and acting back on the magnet system can be used to detect defects in the
Brauer Hartmut, Ziolkowski Marek
doaj   +1 more source

Relativistically expanding cylindrical electromagnetic fields

, 2009
We study relativistically expanding electromagnetic fields of cylindrical geometry. The fields emerge from the side surface of a cylinder and are invariant under translations parallel to the axis of the cylinder.
Aly, Contopoulos, Fabian, Fendt, Goodwin, Gourgouliatos, Gourgouliatos, Hurley, K. N. Gourgouliatos, Kalapotharakos, Komissarov, LeBlanc, Lovelace, Lovelace, Low, Lynden-Bell, Lynden-Bell, Lyutikov, McKinney, Meliani, Palmer, Prendergast, Priest, Tsinganos, Uzdensky, Uzdensky, Vlahakis, Vlahakis, Wolfson   +28 more
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Approximation and Uncertainty Quantification of Systems with Arbitrary Parameter Distributions using Weighted Leja Interpolation

Algorithms, 2020
Approximation and uncertainty quantification methods based on Lagrange interpolation are typically abandoned in cases where the probability distributions of one or more system parameters are not normal, uniform, or closely related distributions, due to ...
Dimitrios Loukrezis, Herbert De Gersem
doaj   +1 more source

Gauge Invariant Fractional Electromagnetic Fields

, 2011
Fractional derivatives and integrations of non-integers orders was introduced more than three centuries ago but only recently gained more attention due to its application on nonlocal phenomenas.
Agrawal, Agrawal, Baleanu, Baleanu, Bauer, Belleguie, Brandt, Caputo, Caputo, Cresson, Cresson, Dreisigmeyer, Engheta, Genchev, Goldfain, Herrmann, Iomin, Ketov, Kilbas, Kusnezov, Laskin, Laskin, Lim, Magin, Mashhoon, Matheus Jatkoske Lazo, Metzler, Metzler, Munkhammar, Muslih, Naber, Naqvi, Oldham, Podlubny, Raspini, Riewe, Tarasov, Tarasov, West, Zhang, Závada   +40 more
core   +1 more source