Electron Beam Excited Surface Plasmon Polaritons Carrying Orbital Angular Momentum

摘要：

　　A method to generate surface plasmon polaritons(SPP)carrying orbital angular momentum(OAM)is proposed.Here the electrons beam is rotating around the nanowire as well as going along it at the same time.As the trace of the electron beam is chiral,the SPP it generate can be chiral as well,enabling it to carry OAM with specific topological charge,on condition that the speed of electron matches the phase speed of light.When multiple synchronous electron sources exist,electromagnetic modes whose symmetry match that of electron sources can be additionally strengthened,possible increase the suppression ratio to other modes.

关键词： Cherenkov radiation Surface plasmon polaritons Orbital angular momentum

作者: Long Xiao Junfeng Chen Liang Chen Qi Zhang Longying Guo Meng Yang

作者单位: Science and Technology on Electromagnetic Compatibility Laboratory China Ship Development and Design Center,Wuhan,P.R.China

会议类型: 国际会议

会议名称: The 12th International Symposium Antennas, Propagation, and EM Theory(ISAPE 2018)?(第十二届天线、传播与电磁理论国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 1-3

在线出版日期: 2018-12-03（万方平台首次上网日期，不代表论文的发表时间）