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Highly confined surface waves present unique opportunities to enhance light interactions with localized emitters or molecules. Hyperbolic dispersion in metasurfaces allows us to tailor and manipulate surface waves, enhancing the local…

光学 · 物理学 2019-05-01 Yarden Mazor , Andrea Alù

With numerical experiments we explore the feasibility of using high frequency waves for probing the magnetic fields in the photosphere and the chromosphere of the Sun. We track a plane-parallel, monochromatic wave that propagates through a…

天体物理学 · 物理学 2009-11-13 O. Steiner , G. Vigeesh , L. Krieger , S. Wedemeyer-Böhm , W. Schaffenberger , B. Freytag

We carry out 3D and 2D PIC-simulations of the expansion of a magnetized plasma that initially uniformly fills a half-space and contains a semi-cylindrical region of heated electrons elongated along the surface of the plasma boundary. This…

等离子体物理 · 物理学 2022-06-08 Mikhail Garasev , Anton Nechaev , Andrey Stepanov , Vitaly Kocharovsky , Vladimir Kocharovsky

Electromagnetic (EM) waves propagating through an inhomogeneous medium inevitably scatter whenever electromagnetic properties of the medium change on the scale of a single wavelength. This fundamental phenomenon constrains how optical…

光学 · 物理学 2016-09-15 Kueifu Lai , Tzuhsuan Ma , Xiao Bo , Steven Anlage , Gennady Shvets

A low loss propagating electromagnetic wave is shown to exist at a gradual interface between two lossy conductive media. The electromagnetic frequency range of this phenomenon may span from UV optics to RF range. In particular, it is…

经典物理 · 物理学 2021-06-07 Igor I. Smolyaninov

Electrons on the liquid helium surface form an extremely clean two dimensional system where different plasmon-excitations can coexist. Under a magnetic field time reversal symmetry is broken and all the bulk magneto-plasmons become gaped at…

介观与纳米尺度物理 · 物理学 2021-02-17 A. D. Chepelianskii , D. Papoular , H. Bouchiat , K. Kono

The geometric representation at a fixed frequency of the wavevector (or dispersion) surface $\omega(\vec k)$ for lossless, homogeneous dielectric--magnetic uniaxial materials is explored, when the elements of the relative permittivity and…

A new type of helical undulator based on redistribution of magnetic field of a solenoid by ferromagnetic helix has been proposed and studied both in theory and experiment. Such undulators are very simple and efficient for promising sources…

加速器物理 · 物理学 2018-01-17 N. Balal , I. V. Bandurkin , V. L. Bratman , A. E. Fedotov

We present the microscopic treatment of edge magnetoplasmons (EMPs) for the regime of not-too-low temperatures defined by the condition $\hbar \omega_{c}\gg k_{B}T\gg \hbar v_{g}/2\ell_{0}$, where $v_{g}$ is the group velocity of the edge…

介观与纳米尺度物理 · 物理学 2010-05-25 Sanderson Silva , Oleg G. Balev

The present paper is concerned with the existence of traveling wave solutions of the asymptotic model, derived by the authors in a previous work, to approximate the unidirectional evolution of a collision-free plasma in a magnetic field.…

偏微分方程分析 · 数学 2024-10-14 Diego Alonso-Orán , Angel Durán , Rafael Granero-Belinchón

Electromagnetic waves propagating, at finite speeds, in conventional wave-guiding structures are reflected by discontinuities and decay in lossy regions. In this Letter, we drastically modify this typical guided-wave behavior by combining…

光学 · 物理学 2018-09-12 S. Ali Hassani Gangaraj , Francesco Monticone

Generation of wake fields by a short electromagnetic pulse in a plasma with an inhomogeneous background magnetic field and density profile is considered, and a wave equation is derived. Transmission and reflection coefficients are…

等离子体物理 · 物理学 2009-11-07 Martin Servin , Gert Brodin

In this work, a systematic study, examining the propagation of periodic and solitary wave along the magnetic field in a cold collision-free plasma, is presented. Employing the quasi-neutral approximation and the conservation of momentum…

斑图形成与孤子 · 物理学 2020-10-28 G. Abbas , P. G. Kevrekidis , J. E. Allen , V. Koukouloyannis , D. J. Frantzeskakis , N. Karachalios

A comprehensive analysis of hybrid TM-TE polarized surface electromagnetic waves supported by different few-layer anisotropic metasurfaces is presented. A generalized 4$\times$4 T-matrix formalism for arbitrary anisotropic 2D layers is…

介观与纳米尺度物理 · 物理学 2020-06-23 O. V. Kotov , Yu. E. Lozovik

In the present analysis we study the self consistent propagation of nonlinear electromagnetic pulses in a one dimensional relativistic electron-ion plasma, from the perspective of nonlinear dynamics. We show how a series of Hamiltonian…

等离子体物理 · 物理学 2015-06-26 Alexandre Bonatto , Renato Pakter , Felipe Rizzato

We present a theoretical study of electromagnetic surface waves localized at an interface separating a conventional uniform medium and a semi-infinite 1-D photonic crystal made of alternate left-handed metamaterial and right-handed material…

光学 · 物理学 2009-11-13 Abdolrahman Namdar

Bright transient objects in different wave bands have been discovered in recent years. To explain these short (from ms to s), and very powerful events different models, galactic and extragalactic, have been considered. One of popular model…

等离子体物理 · 物理学 2024-10-30 G. S. Bisnovatyi-Kogan , I. A. Kondratyev , S. G. Moiseenko

There is considerable interest in the application of quantum information science to advance computations in plasma physics. Many of the topics in fusion plasma physics are classical in nature. In order to implement them on quantum computers…

等离子体物理 · 物理学 2024-06-12 Abhay K. Ram , George Vahala , Linda Vahala , Min Soe

The properties of surface waves in a partially ionized, compressible magnetized plasma slab are investigated in this work. The waves are affected by the nonideal magnetohydrodynamic effects which causes finite drift of the magnetic field in…

太阳与恒星天体物理 · 物理学 2015-06-23 B. P. Pandey , C. B. Dwivedi

We consider a simple model of one-dimensional magnetic crystal and examine the propagation of an electromagnetic wave through such a medium. Calculating the dispersion relation ${\bf k}(\omega)$ allows us to illustrate how the spread of the…

强关联电子 · 物理学 2026-05-05 Taras Krokhmalskii , Taras Verkholyak , Ostap Baran , Dmytro Yaremchuk , Taras Hutak , Oleg Derzhko