论文标题
在强场电离中，电子在隧道出口处电子纵向动量的实验指纹
Experimental fingerprint of the electron's longitudinal momentum at the tunnel exit in strong field ionization
论文作者
论文摘要
我们介绍了反旋转两色（CRTC）激光场中氩气电离的强场隧道电离。我们发现沿隧道方向的初始动量成分更改标志，比较了CRTC场的上升和下降边缘。如果隧道出口处的初始动量在隧道瞬间处的离子方向，则表现为增强的库仑库仑与其母离子的相互作用。我们的结论符合基于强场近似的预测。
We present experimental data on the strong field tunnel ionization of argon in a counter-rotating two-color (CRTC) laser field. We find that the initial momentum component along the tunneling direction changes sign comparing the rising and the falling edge of the CRTC field. If the initial momentum at the tunnel exit points in the direction of the ion at the instant of tunneling, this manifests as an enhanced Coulomb interaction of the outgoing electron with its parent ion. Our conclusions are in accordance with predictions based on strong field approximation.
