Title

Monitoring And Controlling The Electron Dynamics In Helium With Isolated Attosecond Pulses

Abstract

Helium atoms in the presence of extreme ultraviolet light pulses can lose electrons through direct photoionization or through two-electron excitation followed by autoionization. Here we demonstrate that, by combining attosecond extreme ultraviolet pulses with near infrared femtosecond lasers, electron dynamics in helium autoionization can be not only monitored but also controlled. Furthermore, the interference between the two ionization channels was modified by the intense near infrared laser pulse. To the best of our knowledge, this is the first time that double excitation and autoionization were studied experimentally by using isolated attosecond pulses. © 2010 The American Physical Society.

Publication Date

12-27-2010

Publication Title

Physical Review Letters

Volume

105

Issue

26

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevLett.105.263003

Socpus ID

78650600388 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/78650600388

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