摘要
电子掠过周期金属结构会激发Smith-Purcell辐射。微纳加工工艺的发展推动了具有复杂结构的微纳金属人工材料的加工,因此人们开始聚焦于电子激发微纳周期结构所出现的辐射现象。本文研究了运动线电子束团激发金属光子晶体所激发辐射的特点和规律,重点讨论了如何利用自由电子去激发金属光子晶体结构,从而取得最大的辐射强度。
Electrons passing through periodic metal structures can excite Smith Purcell radiation.Processing of complex micro/nano metallic structures is driven by the developing microfabrication technology,so the electron-exciting radiation phenomena from micro/nano periodic structures have been focused on.The characteristics and laws of radiation generated by metal photonic crystals excited by a bunch of moving line electron beams are investigated.It is emphatically discussed how the maximum radiation intensity can be obtained by using free electrons to excite metallic photonic crystal structures.
作者
舒靖
李庭刚
张平
王少萌
宫玉彬
SHU Jing;LI Ting-gang;ZHANG Ping;WANG Shao-meng;GONG Yu-bin(School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;Beijing Institute of Control and Electronic Technology,Beijing 100045,China)
出处
《真空电子技术》
2023年第3期61-64,69,共5页
Vacuum Electronics
基金
国家自然科学基金项目(62171098,92163204,61921002)
中央高校基金项目(Grant No.ZYGX2020ZB013)
四川省自然科学基金项目(Grant No.2022NSFC0512)。
关键词
光子晶体
电磁辐射
微纳结构
Photonic crystal
Electromagnetic radiation
Micro/nano structure
