Results 21 to 30 of about 36,463 (262)

Giant excitonic upconverted emission from two-dimensional semiconductor in doubly resonant plasmonic nanocavity

open access: yesLight: Science & Applications, 2022
Based on locally enhanced electromagnetic field and accelerated spontaneous emission rate, excitonic upconversion enhancement of more than 1000-fold was achieved in plasmonic nanocavity coupled transition metal dichalcogenide monolayers.
Pengfei Qi   +11 more
doaj   +1 more source

Drinking Mineral Water and Low-Intensity Electromagnetic Radiation Combinational Effect on Rat Testes in Metabolic Syndrome: а Randomized Controlled Study

open access: yesВестник восстановительной медицины, 2022
INTRODUCTION. To correct disorders in the male reproductive system organs in the metabolic syndrome, it seems reasonable to use a combined effect of natural and artificial therapeutic physical factors – drinking mineral water and low-intensity ...
Yury N. Korolev   +2 more
doaj   +1 more source

Metamaterials: electromagnetic enhancement at zero-index transition [PDF]

open access: yesOptics Letters, 2008
Resonant enhancement of electromagnetic waves propagating at oblique incidence in metamaterials, with dielectric permittivity and magnetic permeability linearly changing from positive to negative values, has been predicted and theoretically studied. This effect occurs for both TE and TM polarizations near the point where a refractive index changes its ...
Litchinitser, Natalia M   +4 more
openaire   +3 more sources

Boosting an anapole mode response through electromagnetic interactions beyond near-field limit in individual all-dielectric disk-ring nanostructures

open access: yesNew Journal of Physics, 2021
Anapole modes of all-dielectric nanostructures hold great promise for many nanophotonic applications. However, anapole modes can hardly couple to other modes through far-field interactions, and their near-field enhancements are dispersed widely inside ...
Yan-Hui Deng   +4 more
doaj   +1 more source

Strategies to Enhance the Data Density in Synchronous Electromagnetic Encoders

open access: yesSensors, 2022
In this paper, we report two different strategies to enhance the data density in electromagnetic encoders with synchronous reading. One approach uses a periodic chain of rectangular metallic patches (clock chain) that determines the encoder velocity, and dictates the instants of time for retrieving the bits of the identification (ID) code.
Ferran Paredes   +2 more
openaire   +6 more sources

Experimental Study on the Propulsion Performance of Laser Ablation Induced Pulsed Plasma

open access: yesAerospace
This study investigates the influence of electromagnetic fields on the propulsion performance of laser plasma propulsion. Based on the principle of pulsed plasma thrusters, an electromagnetic field is utilized to accelerate laser plasma, achieving ...
Hang Song   +4 more
doaj   +1 more source

Tuning Localized Surface Plasmon Resonance of Nanoporous Gold with a Silica Shell for Surface Enhanced Raman Scattering

open access: yesNanomaterials, 2019
We report the tuning of localized surface plasmon resonance (LSPR) of nanoporous gold (NPG) by silica coating, which also affects the surface enhanced Raman scattering (SERS) of NPG.
Wei Li   +5 more
doaj   +1 more source

Coulomb attraction driven spontaneous molecule-hotspot pairing enables universal, fast, and large-scale uniform single-molecule Raman spectroscopy

open access: yesOpto-Electronic Advances
Raman spectroscopy offers a great power to detect, analyze and identify molecules, and monitor their temporal dynamics and evolution when combined with single-molecule surface-enhanced Raman scattering (SM-SERS) substrates.
Lihong Hong   +4 more
doaj   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

open access: yesFEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno   +3 more
wiley   +1 more source

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