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e-Article

Cherenkov-like radiation from metallic metamaterials
Document Type
Conference
Source
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International. :1-2 May, 2013
Subject
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Components, Circuits, Devices and Systems
Metals
Gratings
Surface waves
Metamaterials
Films
Optical surface waves
Educational institutions
Metamaterial
slit mode
momentum matching
Language
Abstract
The radiation of slit modes excited by convection electron inside a perfect metal film perforated with one dimensional array of cut-through slit is studied. The radiations of non radiating slit modes are achieved by grating coupler which provides the required momentum shift to them. Numerical simulation shows that the radiation intensity of these momentum shifted slit modes are more than that of Smith-Purcell radiation by more than one order magnitude.