The coherent THz Smith-Purcell radiation from a three-dimensional open holes array structure

被引：8
|
作者：
Zhang, P. [1 ]
Wang, L. [1 ]
Zhang, Y. [1 ,2 ]
Tang, M. [3 ]
Xi, Y. [4 ]
Liang, S. [2 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 610054, Sichuan, Peoples R China
[2] Hebei Semicond Res Inst, Natl Key Lab Applicat Specif Integrated Circuit, Shijiazhuang 050051, Hebei, Peoples R China
[3] Chongqing Univ, Coll Commun Engn, Chongqing 400044, Peoples R China
[4] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
来源：
AIP ADVANCES | 2018年 / 8卷 / 10期
关键词：
CHARGE MOVING PARALLEL;
D O I：
10.1063/1.5040791
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Coherent Smith-Purcell radiation from multiple electron beam excitation in a three-dimensional open holes array structure has been proposed. The electron beam passes through the holes, which can be coupled with each other to enhance surface wave fields, so that the multiple electron beam injection can interact with the surface wave field efficiently. And the Smith-Purcell radiation will be enhanced due to an increasement in dipole oscillations occurring when the electrons pass through the holes. Therefore, a high beam-wave interaction efficiency is yielded and very strong coherent terahertz radiation can be generated. This multi-beam system is expected to provide a favorable way to excite the coherent Smith-Purcell radiation, which would be used to generate terahertz radiation. (c) 2018 Author(s).
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页数：11
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