Transforming Surface Waves Into Enhanced Terahertz Smith-Purcell Radiation Using Cascaded Gratings

Poster (ELEC-P1)

Thu, 12 Nov 2020 01:15am to 03:00am

Attend in Zoom

We propose an efficient terahertz radiation scheme using electron-beams to excite cascaded gratings, which can transform a series of surface waves on the cascaded gratings into coherent Smith-Purcell Radiation (SPR). Compared with the conventional SPR schemes, its radiation efficiency and power can be orders of magnitude higher. In addition, it changes the conventional incoherent SPR into coherent emission with frequency being continuously tunable. Thus, it affords a promising way of developing high power, coherent, and tunable terahertz radiation sources.

Presenters and Authors Info

Presenter: Anonymous

Authors: Liu, Weihao; Liu, Yucheng; Yu, Zijia; Jia, Qika; Sun, Baogen; Li, Weiwei; Liu, Wenxin

Institute of Electronics, Chinese Academy Sciences, NUAA, USTC