Open AccessEnhanced reversed Cherenkov radiation in a waveguide with double-negative metamaterials
Author(s) -
Zhaoyun Duan,
Chen Guo,
Min Chen
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.013825
Subject(s) - cherenkov radiation , charged particle , metamaterial , optics , physics , radiation , particle radiation , beam (structure) , transition radiation , waveguide , particle (ecology) , particle beam , charged particle beam , detector , ion , oceanography , quantum mechanics , geology
In order to enhance the radiation energy of reversed Cherenkov radiation (RCR), on the basis of the single charged particle model, we developed a theoretical method using a charged particle beam bunch to enhance RCR in a circular waveguide partially filled with anisotropic double-negative metamaterials (DNMs). In this case, the reversed radiation mechanism is further illustrated. Numerical example shows that the radiated energy can be effectively enhanced by increasing the charged particle number in a short bunch and thus be readily detectable. The method reported here offers a theoretical basis for directly observing RCR using a charged particle beam bunch.