DocumentCode
153517
Title
Simulation of Smith-Purcell terahertz radiation from a dielectric loaded grating
Author
Miaomiao Cao ; Wenxin Liu ; Yong Wang ; Ke Li
Author_Institution
Key Lab. of High Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
fYear
2014
fDate
14-19 Sept. 2014
Firstpage
1
Lastpage
2
Abstract
In this paper, with the help of a two-dimensional (2D) particle-in-cell (PIC) code, a simulation of Smith-Purcell (SP) radiation from the dielectric loaded grating is performed in the terahertz regime. The results show that the SP radiation frequency is in good agreement with the theoretical curve. Comparing with the general grating, the usage of dielectric loaded grating enhances the evanescent wave, which can improve the beam-wave interaction, and make the electron beam be bunched more easily.
Keywords
electron beams; particle beam bunching; terahertz waves; 2D particle in cell code; Smith Purcell terahertz radiation; beam wave interaction; dielectric loaded grating; electron beam; evanescent wave; Dielectrics; Electron beams; Gratings; Load modeling; Metals; Surface waves; Trajectory;
fLanguage
English
Publisher
ieee
Conference_Titel
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location
Tucson, AZ
Type
conf
DOI
10.1109/IRMMW-THz.2014.6956513
Filename
6956513
Link To Document