Results 31 to 40 of about 9,968,007 (375)

Optical Transmitters without Driver Amplifiers—Optimal Operation Conditions

open access: yesApplied Sciences, 2018
An important challenge in optical communications is the generation of highest-quality waveforms with a Mach–Zehnder modulator with a limited electrical swing (Vpp).
Arne Josten   +4 more
doaj   +1 more source

Plasmonic IQ modulators with attojoule per bit electrical energy consumption

open access: yesNature Communications, 2019
Increasing bandwidth demands in optical communications requires components to be compact with energy-efficient operation. Here, the authors demonstrate plasmonic IQ modulators on a silicon photonics platform with phase shifters, operating with sub-1V ...
Wolfgang Heni   +12 more
doaj   +1 more source

Quasi‐3D magnetic field simulation of superconducting devices with translational symmetry

open access: yesIET Science, Measurement & Technology, 2021
This work presents a quasi‐three‐dimensional (Q3D) approach for the magnetic field simulation in superconducting devices. First‐order two‐dimensional finite‐element edge functions in the model's cross‐section are combined with one‐dimensional orthogonal ...
Laura A. M. D'Angelo, Herbert De Gersem
doaj   +1 more source

The effects of electric, magnetic and electromagnetic fields on microorganisms in the perspective of bioremediation

open access: yesReviews in Environmental Science and Bio\/technology, 2019
Some studies show how exposure to fields can enhance or reduce cell activity, with possible applicative consequences in the field of biotechnology, including biological techniques for depollution.
G. Beretta   +4 more
semanticscholar   +1 more source

Electromagnetic fields and anomalous transports in heavy-ion collisions—a pedagogical review [PDF]

open access: yesReports on progress in physics. Physical Society, 2015
The hot and dense matter generated in heavy-ion collisions may contain domains which are not invariant under P and CP transformations. Moreover, heavy-ion collisions can generate extremely strong magnetic fields as well as electric fields.
Xu-Guang Huang
semanticscholar   +1 more source

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

open access: yesSensors, 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   +3 more
doaj   +1 more source

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

open access: yesEPJ 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   +5 more
doaj   +1 more source

On rational electromagnetic fields [PDF]

open access: yesPhysics Letters A, 2020
We employ a recently developed method for constructing rational electromagnetic field configurations in Minkowski space to investigate several properties of these source-free finite-action Maxwell ("knot") solutions. The construction takes place on the Penrose diagram but uses features of de Sitter space, in particular its isometry group. This admits a
Kaushlendra Kumar, Olaf Lechtenfeld
openaire   +3 more sources

Advanced Modelling Techniques for Resonator Based Dielectric and Semiconductor Materials Characterization

open access: yesApplied 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   +4 more
doaj   +1 more source

Waveguide coupled III-V photodiodes monolithically integrated on Si

open access: yesNature 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   +10 more
doaj   +1 more source

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