Title :
The spatial growth rate of a negative material involved Cherenkov free-electron laser
Author :
Yuanyuan Wang ; Yanyu Wei ; Dazhi Li ; Xianbao Shi ; Hairong Yin ; Jin Xu ; Luqi Zhang ; Chong Ding ; Xianfeng Tang ; Shifeng Li ; Zhaoyun Duan ; Yubin Gong ; Wenxiang Wang
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Vacuum Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
An electron beam flying near a dielectric slab plays an important part in the study of Cherenkov free-electron laser (CFEL). In this paper, an electron beam travelling along the surface of a slab made of negative-index materials (NIM) are theoretically studied. The dispersion equation with beam loaded is derived and the spatial growth rate is obtained which is proportional to the cube root of the beam current.
Keywords :
electron beams; free electron lasers; metamaterials; optical metamaterials; Cherenkov free-electron laser; dielectric slab; dispersion equation; electron beam; negative material; negative-index materials; spatial growth rate; Ear; NIM; TM mode; spatial growth rate;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223955
