Streak-camera probing of rubidium Rydberg wave packet decay in an electric field.
Streak-camera probing of rubidium Rydberg wave packet decay in an electric field.
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DOI：
10.1103/physrevlett.76.1784
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发表时间：
1996-03
影响因子：
8.6
通讯作者：
Lankhuijzen;Noordam
中科院分区：
文献类型：
--
作者：
Lankhuijzen;Noordam
研究了自电离电子波包在2.0kV/cm静电场中的衰减。利用原子条纹相机测量了激光激发的里德堡波包在鞍点上的逃逸。获得了不能从光学递归光谱中恢复的有关电离动力学的新信息。当激光激发垂直于电场的标度能量ε=−1.74时，主电离延迟12ps。对于平行极化(ε=−1.32)，电离发生在两个相隔7ps的爆发中。
The decay of autoionizing electronic wave packets of rubidium in a static electric field of 2.0 kV/cm is studied. Using an atomic streak camera, the escape of the laser-excited Rydberg wave packets over the saddle point is measured. New information on the ionization dynamics is obtained that cannot be retrieved from optical recurrence spectra. For laser excitation perpendicular to the electric field at scaled energy ε=− 1.74, the main ionization is delayed by 12 ps. For parallel polarization (ε=− 1.32) the ionization occurs in two bursts, 7 ps separated.