Atomic and molecular phases through attosecond streaking

Details Atomic and molecular phases through attosecond streaking Atomic and molecular phases through attosecond streaking

2010-07-16

arxiv.org/abs/1007.2764v1

Physics

Atomic Physics

5 pages, 5 figures

Scientific paper

In attosecond streaking, an electron is released by a short xuv pulse into a strong near infrared laser field. When the laser coupling between two states in the target is weak relative to the detuning, the streaking technique, which allows for a complete determination of the driving field, also gives an accurate measurement of the relative phase of the atomic or molecular ionization matrix elements from the two states through the interference from the two channels. The interference may change the phase of the photoelectron streaking signal within the envelope of the ir field, an effect to be accounted for when reconstructing short pulses from the photoelectron signal and in attosecond time-resolved measurements.

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