Probing angular correlations in sequential double ionization.
Probing angular correlations in sequential double ionization.
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DOI：
10.1103/physrevlett.107.113003
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发表时间：
2011-09
影响因子：
8.6
通讯作者：
Avner Fleischer;Hans Jakob Wörner;L. Arissian;Lee R. Liu;M. Meckel;A. Rippert;R. Dörner;D. M. Villeneuve;P. Corkum;A. Staudte
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文献类型：
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作者：
Avner Fleischer;Hans Jakob Wörner;L. Arissian;Lee R. Liu;M. Meckel;A. Rippert;R. Dörner;D. M. Villeneuve;P. Corkum;A. Staudte
我们研究了高强度飞秒激光脉冲中稀有气体原子与氯化氢顺序双电离过程中的电子关联。在泵浦探测实验中，我们测量了峰值强度为10(15)W/cm~2的8fs、800 nm圆偏振激光脉冲中Ne~+相对于第一电子的光电子角分布。利用线性-线性泵浦-探测装置，我们进一步研究了He、Ar和HCl。我们发现，在顺序双电离强度区，两个电离步骤之间存在明显的角关联。
We study electron correlation in sequential double ionization of noble gas atoms and HCl in intense, femtosecond laser pulses. We measure the photoelectron angular distributions of Ne+ relative to the first electron in a pump-probe experiment with 8 fs, 800 nm, circularly polarized laser pulses at a peak intensity of a few 10(15) W/cm2. Using a linear-linear pump-probe setup, we further study He, Ar, and HCl. We find a clear angular correlation between the two ionization steps in the sequential double ionization intensity regime.