Spiral field generation in Smith-Purcell radiation by helical metagratings

• المؤلفون الرئيسيون: Jing, Liqiao, Wang, Zuojia, Lin, Xiao, Zheng, Bin, Xu, Su, Shen, Lian, Yang, Yihao, Gao, Fei, Chen, Min, Chen, Hongsheng
• مؤلفون آخرون: School of Physical and Mathematical Sciences
• التنسيق: مقال
• اللغة: English
• منشور في: 2020
• الموضوعات: Science::Physics; Angular Momentum; Dipole
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/145513

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...