Spiral Field Generation in Smith-Purcell Radiation by Helical Metagratings

Moving electrons interacting with media can give rise to electromagnetic radiations and has been emerged as a promising platform for particle detection, spectroscopies, and free-electron lasers. In this letter, we investigate the Smith-Purcell radiation from helical metagratings, chiral structures s...

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Bibliographic Details
Main Authors: Liqiao Jing, Zuojia Wang, Xiao Lin, Bin Zheng, Su Xu, Lian Shen, Yihao Yang, Fei Gao, Min Chen, Hongsheng Chen
Format: Article
Language:English
Published: American Association for the Advancement of Science (AAAS) 2019-01-01
Series:Research
Online Access:http://dx.doi.org/10.1155/2019/3806132