Electron acceleration in a tightly focused ultra-intensity linear polarized laser beam is investigated numerically. It has been found that the acceleration is strong phase dependent and is periodic to the variety of the initial laser field phase. When optimal initial parameters are chosen, the electron can be accelerated effectively. The accelerated electrons are emitted in pulses of which the full width is less than the half period of the laser field.
© 2005 Chinese Optics Letters
Xinkui He, Ruxin Li, Bin Shuai, Xiaochun Ge, and Zhizhan Xu, "Electron acceleration in a tightly focused laser beam," Chin. Opt. Lett. 3, 364-366 (2005)