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In this paper, we propose a new electromagnetic (EM) GL double layered cloak. The GL double layered cloak is consist of two sphere annular layers, $R_1 \le r \le R_2$ and $R_2 \le r \le R_3$. Two type cloak materials are proposed and…

光学 · 物理学 2009-04-22 Ganquan Xie , Jianhua Li , Feng Xie , Lee Xie

In this paper, we propose a novel electromagnetic (EM) cloaking structure that consists of two annular layers between three spherical shells and model its performance numerically and theoretically by using a Global and Local EM field (GL)…

光学 · 物理学 2017-01-02 Ganquan Xie , Jianhua Li , Feng Xie , Lee Xie

In this paper, we proposed the GLHUA double layer cloak; proved the properties of GLHUA double layer cloak; Using GL no scattering inversion and the pre cloak condition 6.1 to 6.4 in paper [1], we create GLHUA outer layer cloak radial…

经典物理 · 物理学 2018-09-10 Jianhua Li , Feng Xie , Lee Xie , Ganquan Xie

Using GL no scattering full wave modeling and inversion, we create a GLHUA pre cloak electromagnetic (EM) material in the virtual sphere that makes the sphere is invisible. The invisible sphere is called GLHUA sphere. In GLHUA sphere, the…

经典物理 · 物理学 2020-04-15 Jianhua Li , Feng Xie , Lee Xie , Ganquan Xie

In this paper, we propose a novel GLWF double layer EM cloak in the broad frequency band. The GLWF double layer cloak consists of two sphere annular layers, two type cloak materials are proposed and installed in its each layer,…

光学 · 物理学 2010-02-24 Ganquan Xie , Jianhua Li , Lee Xie , Feng Xie

In this paper, we propose practicable GLHUA invisible cloaks, our cloak absorb the incident wave and create outgoing wave that make them to be invisible cloaks and analytical electromagnetic (EM) wave without exceeding light speed…

综合物理 · 物理学 2020-04-15 Jianhua Li , Feng Xie , Lee Xie , Ganquan Xie

In this paper, we consider two regularized transformation-optics cloaking schemes for electromagnetic (EM) waves. Both schemes are based on the blowup construction with the generating sets being, respectively, a generic curve and a planar…

偏微分方程分析 · 数学 2016-09-21 Youjun Deng , Hongyu Liu , Gunther Uhlmann

This paper is concerned with the invisibility cloaking in electromagnetic wave scattering from a new perspective. We are especially interested in achieving the invisibility cloaking by completely regular and isotropic mediums. Our study is…

数学物理 · 物理学 2017-01-20 Jingzhi Li , Xiaofei Li , Hongyu Liu , Yuliang Wang

Based on a coordinate transformation approach, Pendry {\it et al.} have reported electromagnetically anisotropic and inhomogeneous shells that, in theory, completely shield an interior structure of arbitrary size from electromagnetic fields…

In this paper, we propose new Global and Local (GL) electromagnetic (EM) cloaks with distinctive class material a_{\alpha \beta}\log ^\alpha (b_{\alpha \beta}/h) h^\beta (GLLH Cloak) without exceed light speed violation. The refractive…

综合物理 · 物理学 2011-07-01 Ganquan Xie , Jianhua Li , Lee Xie , Feng Xie

Transformation optics constructions have allowed the design of cloaking devices that steer electromagnetic, acoustic and quantum waves around a region without penetrating it, so that this region is hidden from external observations. The…

偏微分方程分析 · 数学 2015-09-15 Matti Lassas , Ting Zhou

This paper proposes a radial dependent dispersive finite-difference time-domain method for the modelling of electromagnetic cloaking structures. The permittivity and permeability of the cloak are mapped to the Drude dispersion model and…

经典物理 · 物理学 2009-11-13 Yan Zhao , Christos Argyropoulos , Yang Hao

Metamaterials have paved the way to unprecedented control of the electromagnetic field1,2. The conjunction with space coordinate transformation has led to a novel "relativity inspired" approach for the control of light propagation.…

光学 · 物理学 2015-05-13 Boubacar Kante , Dylan Germain , Andre de Lustrac

We consider a novel method of cloaking objects from the surrounding electromagnetic fields in the microwave region. The method is based on transmission-line networks that simulate the wave propagation in the medium surrounding the cloaked…

经典物理 · 物理学 2009-11-13 Pekka Alitalo , Olli Luukkonen , Liisi Jylhä , Jukka Venermo , Sergei Tretyakov

There has recently been considerable interest in the possibility, both theoretical and practical, of invisibility (or "cloaking") from observation by electromagnetic (EM) waves. Here, we prove invisibility, with respect to solutions of the…

偏微分方程分析 · 数学 2009-11-11 Allan Greenleaf , Yaroslav Kurylev , Matti Lassas , Gunther Uhlmann

For any inhomogeneous compactly supported electromagnetic (EM) medium, it is shown that there exists an infinite set of linearly independent electromagnetic waves which generate nearly vanishing scattered wave fields. If the inhomogeneous…

偏微分方程分析 · 数学 2017-03-08 Hongyu Liu , Yuliang Wang , Shuhui Zhong

The excitation of electromagnetic (EM) wake waves in electron plasma by an one-dimensional bunch of charged particles has been considered in the presence of intense monochromatic circularly polarized electromagnetic (CPEM) pump wave. In the…

等离子体物理 · 物理学 2007-05-23 S. S. Elbakian , H. B. Nersisyan

There is currently a great deal of interest in the theoretical and practical possibility of cloaking objects from the observation by electromagnetic waves. The basic idea of these invisibility devices \cite{glu1, glu2, le},\cite{pss1} is to…

光学 · 物理学 2008-02-04 Ricardo Weder

We study the approximate cloaking via transformation optics for electromagnetic waves in the time harmonic regime in which the cloaking device {\it only} consists of a layer constructed by the mapping technique. Due to the fact that…

偏微分方程分析 · 数学 2018-11-02 Hoai-Minh Nguyen , Loc Tran

Electromagnetic metamaterials provide unprecedented freedom and flexibility to introduce new devices, which control electromagnetic wave propagation in very unusual ways. Very recently theoretical design of an "invisibility cloak" has been…

光学 · 物理学 2009-11-13 I. I. Smolyaninov , Y. J. Hung , C. C. Davis
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