Subcycle ac Stark Shift of Helium Excited States Probed with Isolated Attosecond Pulses
Thu, 2012-08-16 16:00 — Guest
Author(s): Michael Chini, Baozhen Zhao, He Wang, Yan Cheng, S. X. Hu, and Zenghu Chang
Recent advances in attosecond science have relied upon the nearly instantaneous response of free electrons to an external field. However, it is still not clear whether bound electrons are able to rearrange on sublaser cycle time scales. Here, we probe the optical Stark shifts induced by a few-cycle ...
[Phys. Rev. Lett. 109, 073601] Published Thu Aug 16, 2012
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