Scattering and polarization conversion of electromagnetic waves obliquely incident on a magnetized plasma layer

2017 ◽  
Vol 24 (7) ◽  
pp. 073302
Author(s):  
Suwon Cho
Keyword(s):  
Electromagnetic Waves ◽  
Plasma Layer ◽  
Magnetized Plasma ◽  
Polarization Conversion ◽  
Obliquely Incident

The spectrum of electromagnetic waves in a magnetized gaseous plasma layer. Part 1. Wave dispersion

2001 ◽  
Vol 65 (4) ◽  
pp. 273-289
Author(s):  
S. T. IVANOV ◽  
S. NONAKA ◽  
N. I. NIKOLAEV
Keyword(s):  
Wave Propagation ◽  
Electromagnetic Waves ◽  
Plasma Layer ◽  
Wave Dispersion ◽  
Magnetized Plasma ◽  
Zone Boundary ◽  
Layer Width ◽  
Waveguide Modes ◽  
Gaseous Plasma ◽  
The Waves

A numerical investigation of wave propagation in a magnetized plasma layer is performed. Four families of waves can propagate: plasma, cyclotron, anisotropic and waveguide modes. It is shown that the singular waves propagate at the crossing points of the waves with the complex zone boundary. The influence of the interface, the layer width and the magnetization of the plasma on the spectrum of the waves is analysed.

The spectrum of electromagnetic waves in a magnetized gaseous plasma layer. Part 2. Anisotropic modes

2001 ◽  
Vol 65 (4) ◽  
pp. 291-303 ◽  
Author(s):  
S. T. IVANOV ◽  
N. I. NIKOLAEV ◽  
S. NONAKA ◽  
P. N. MALINOV
Keyword(s):  
Numerical Investigation ◽  
Planar Waveguide ◽  
Electromagnetic Waves ◽  
Poynting Vector ◽  
Plasma Layer ◽  
Magnetized Plasma ◽  
Anisotropic Properties ◽  
Gaseous Plasma ◽  
Gyrotropic Plasma

A numerical investigation of anisotropic waves propagating in a magnetized plasma layer is performed. In gyrotropic plasma layers, there are two regions in which electromagnetic waves exist owing to the anisotropic properties of the plasma. Mainly these are Rayleigh pseudosurface waves. In the upper anisotropic region, a wave exists only in a planar waveguide. In the lower anisotropic region, there are two waves. The dispersion and the origin of these waves are analysed. The distribution of the energy and the Poynting vector are unique, and they differ from those of other families of electromagnetic waves. At small wavenumbers, the energy is concentrated in one of the dielectrics and at large wavenumbers, it is concentrated in the plasma.

Propagation of Electromagnetic Waves in Graphene-Wrapped Cylindrical Waveguides Filled With Magnetized Plasma

Optik ◽  
2021 ◽  
pp. 167566
Author(s):  
Muhammad Usman Shahid ◽  
Abdul Ghaffar ◽  
Majeed A.S. Alkanhal ◽  
Yasin Khan
Keyword(s):  
Electromagnetic Waves ◽  
Magnetized Plasma ◽  
Cylindrical Waveguides

Scattering of electromagnetic waves by anomalous fluctuations of a magnetized plasma

1990 ◽  
Vol 43 (2) ◽  
pp. 165-172 ◽  
Author(s):  
V. N. Pavlenko ◽  
V. G. Panchenko
Keyword(s):  
Cross Section ◽  
Electromagnetic Waves ◽  
Pump Wave ◽  
Density Fluctuations ◽  
Scattering Cross Section ◽  
Magnetized Plasma ◽  
Lower Hybrid ◽  
Scattering Cross ◽  
Parametric Decay ◽  
Ion Acoustic

Fluctuations and scattering of transverse electromagnetic waves by density fluctuations in a magnetized plasma in the presence of parametric decay of the pump wave are investigated. The spectral density of electron-density fluctuations is calculated. It is shown that the differential scattering cross-section has sharp maxima at the ion-acoustic and lower-hybrid frequencies when parametric decay of the lower-hybrid pump wave occurs. We note that scattering at the ion-acoustic frequency is dominant. When the pump-wave amplitude tends to the threshold strength of the electric field the scattering cross-section increases anomalously, i.e. there is critical opalescence.

Transmissive 2-bit anisotropic coding metasurface

2022 ◽  
Author(s):  
Pengtao Lai ◽  
Zenglin Li ◽  
Wei Wang ◽  
Jia Qu ◽  
Liang Wei Wu ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Electromagnetic Wave ◽  
Circular Polarization ◽  
Orbital Angular Momentum ◽  
Electromagnetic Waves ◽  
Beam Splitter ◽  
Far Field ◽  
Polarization Conversion ◽  
Field Patterns ◽  
Phase Profile

Abstract Coding metasurfaces have attracted tremendous interests due to unique capabilities of manipulating electromagnetic wave. However, archiving transmissive coding metasurface is still challenging. Here we propose a transmissive anisotropic coding metasurface that enables the independent control of two orthogonal polarizations. The polarization beam splitter and the OAM generator have been studied as typical applications of anisotropic 2-bit coding metasurface. The simulated far field patterns illustrate that the x and y polarized electromagnetic waves are deflected into two different directions, respectively. The anisotropic coding metasurface has been experimentally verified to realize an orbital angular momentum (OAM) beam with l = 2 of right-handed polarized wave, resulting from both contributions from linear-to-circular polarization conversion and the phase profile modulation. This work is beneficial to enrich the polarization manipulation field and develop transmissive coding metasurfaces.

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