Generation of a beam of fast electrons by tightly focusing a radially polarized ultrashort laser pulse
Generation of a beam of fast electrons by tightly focusing a radially polarized ultrashort laser pulse
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DOI：
10.1063/1.4738998
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发表时间：
2012-07-23
影响因子：
4
通讯作者：
Kieffer, J. C.
中科院分区：
文献类型：
--
作者：
Payeur, S.;Fourmaux, S.;Kieffer, J. C.
本文报道了用紧聚焦径向偏振（TM 01）激光模通过纵向场加速产生电子束。纵向场是通过用高数值孔径抛物线聚焦TM 01几周期激光脉冲（1.8 μ m，550 μ J，15 fs）产生的。在焦点区域中产生的纵向场足够强，以使原子加速并将电子从低密度氧气中加速到23 keV的能量。介绍了电子束的特性。(C)2012年美国物理学会。[http：//dx.doi.org/10.1063/1.4738998]
The generation of an electron beam through longitudinal field acceleration from a tightly focused radially polarized (TM01) laser mode is reported. The longitudinal field is generated by focusing a TM01 few-cycle laser pulse (1.8 mu m, 550 mu J, 15 fs) with a high numerical aperture parabola. The created longitudinal field in the focal region is intense enough to ionize atoms and accelerate electrons to 23 keV of energy from a low density oxygen gas. The characteristics of the electron beam are presented. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4738998]