Electromagnetic interactions between fast electron beam and a metamaterial cloak

Author

Xu, Jinying ; Dong, Yunxia ; Zhang, Xiangdong

Author_Institution

Dept. of Phys., Beijing Normal Univ., Beijing

fYear

2008

fDate

9-12 Nov. 2008

Firstpage

140

Lastpage

142

Abstract

Relativistic energy loss and photon emission in the interaction of ideal and nonideal metamaterial cloaks with an external electron beam are studied based on the classical electrodynamics. The effects of various imperfect parameters on the efficiency of the cloak are emphasized. The energy-loss spectra and the photon emission for such structures with the different combinations of electron velocity and impact parameter are calculated. It is shown that the efficiency of nonideal electromagnetic cloaks and the effect of various nonideal parameters on the cloak invisibility can be exhibited in the electron energy loss spectroscopy. This means that the properties of cloak can be explored by scanning transmission electron microscopy.

Keywords

electron beams; metamaterials; scanning electron microscopy; transmission electron microscopy; classical electrodynamics; electromagnetic interactions; electron energy loss spectroscopy; electron velocity; energy-loss spectra; external electron beam; fast electron beam; metamaterial cloak; photon emission; scanning transmission electron microscopy; Electromagnetic scattering; Electromagnetic shielding; Electron beams; Energy loss; Metamaterials; Permeability; Permittivity; Scanning electron microscopy; Spectroscopy; Transmission electron microscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Metamaterials, 2008 International Workshop on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-2608-9

Electronic_ISBN

978-1-4244-2609-6

Type

conf

DOI

10.1109/META.2008.4723557

Filename

4723557