Results 11 to 20 of about 300,065 (291)

Electromagnetic scattering laws in Weyl systems. [PDF]

open access: yesNat Commun, 2017
AbstractWavelength determines the length scale of the cross section when electromagnetic waves are scattered by an electrically small object. The cross section diverges for resonant scattering, and diminishes for non-resonant scattering, when wavelength approaches infinity. This scattering law explains the colour of the sky as well as the strength of a
Zhou M, Ying L, Lu L, Shi L, Zi J, Yu Z.
europepmc   +7 more sources

Frequency-dependent Factor Expression of the GTD Scattering Center Model for the Arbitrary Multiple Scattering Mechanism

open access: yesLeida xuebao, 2021
This paper presents a derivation of a formula with a concise and uniform analytic form by the Stationary Phase Method (SPM) plus Geometrical Optics (GO), the Physical Theory of Diffraction (PTD), and Geometrical Theory of Diffraction (GTD) to calculate ...
Hua YAN   +5 more
doaj   +1 more source

Local pressure calibration method of inductively coupled plasma generator based on laser Thomson scattering measurement

open access: yesScientific Reports, 2022
Based on laser Thomson scattering (TS) measurements and finite element method (FEM) simulations of electron density in inductively coupled plasma (ICP), the simulated local pressure calibration curves of ICP generator are obtained by comparing the ...
Jinhai Sun   +12 more
doaj   +1 more source

Long-Range Spoof Surface Plasmons(LRSSP) on the Asymmetric Double Metal Gratings

open access: yesIEEE Photonics Journal, 2021
Spoof surface plasmons (SSP) on the corrugated metal surfaces have been widely studied over the past decade in both microwave and Terahertz (THz) band. Previous studies show that SSP mode on the metal grating suffers from high dissipative losses in high ...
Yong-Qiang Liu   +2 more
doaj   +1 more source

Introduction to electromagnetic scattering: tutorial [PDF]

open access: yesJournal of the Optical Society of America A, 2017
In this paper, an introduction to electromagnetic scattering is presented. We introduce the basic concepts needed to face a scattering problem, including the scattering, absorption, and extinction cross sections. We define the vector harmonics and we present some of their properties. Finally, we tackle the two canonical problems of the scattering by an
F. Frezza, F. Mangini, N. Tedeschi
openaire   +2 more sources

Dispersion Theory of Surface Plasmon Polaritons on Bilayer Graphene Metasurfaces

open access: yesNanomaterials, 2022
Surface plasmon polaritons (SPPs) on the graphene metasurfaces (GSPs) are crucial to develop a series of novel functional devices that can merge the well-established plasmonics and novel nanomaterials.
Yong-Qiang Liu   +4 more
doaj   +1 more source

Ultra-Broadband RCS Reduction Based on Optimized Coding “Whale-Shaped” Polarization Conversion Metasurface With Angular Stability

open access: yesIEEE Access, 2022
In this paper, we employed an efficient polarization conversion metasurface (PCM) to achieve broadband radar cross section (RCS) reduction for plane targets.
Zhongru Ren   +5 more
doaj   +1 more source

Analytical Formulas for Wave Propagation at Low Frequencies in Half-Spaces Due to a Horizontal Magnetic Dipole

open access: yesIEEE Access, 2020
The Sommerfeld Integrals (SIs) are re-visited in the presence of half-spaces under the assumption of γ0 ≈ iλ being valid for low-frequency propagation in order to investigate the near-field due to a Horizontal Magnetic Dipole (HMD ...
Honglei Xu   +5 more
doaj   +1 more source

Transmission Line Equivalent Plane Model and Phase Correction Algorithm for Multilayered Dielectric Slab Structure

open access: yesLeida xuebao, 2015
The Equivalent Plane Model (EPM) and Phase Correction Algorithm (PCA) that are based on Transmission Line Theory (TLT) are proposed to satisfy the resource and efficiency requirements of ElectroMagnetic (EM) scattering analysis of large and complex ...
Zhang Lei   +4 more
doaj   +1 more source

Asymmetric propagation of spoof surface plasmons along doubly corrugated metal surfaces

open access: yesAIP Advances, 2020
Spoof surface plasmons (SSPs) on the doubly corrugated metal surfaces can find a variety of applications, such as waveguides, filters, sensors, communications, and other high-performance active devices in terahertz (THz) and microwave bands.
Yong-Qiang Liu   +3 more
doaj   +1 more source

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