Greig S R, Elezzabi A Y
Ultrafast Optics and Nanophotonics Laboratory Department of Electrical and Computer Engineering University of Alberta Edmonton, AB T6G 1H9 Canada.
Sci Rep. 2016 Jan 14;6:19056. doi: 10.1038/srep19056.
We present a method for the generation of high kinetic energy attosecond electron packets via magnetostatic and aperture filtering of conical surface plasmon (SP) accelerated electrons. The conical SP waves are excited by coupling an ultrafast radially polarized laser beam to a conical silica lens coated with an Ag film. Electromagnetic and particle tracking models are employed to characterize the ultrafast electron packets.
我们提出了一种通过对锥形表面等离子体(SP)加速电子进行静磁和孔径滤波来产生高动能阿秒电子包的方法。通过将超快径向偏振激光束耦合到涂有银膜的锥形石英透镜上,激发锥形SP波。采用电磁和粒子追踪模型来表征超快电子包。