IR-assisted ionization of He by attosecond XUV radiation

P. Ranitovic, X. M. Tong, B. Gramkow, S. De, B. Depaola, K. P. Singh, W. Cao, M. Magrakvelidze, D. Ray, I. Bocharova, H. Mashiko, E. Gagnon, Arvinder Singh Sandhu, M. M. Murnane, H. C. Kapteyn, I. Litvinyuk, C. L. Cocke

Research output: Contribution to journalArticlepeer-review


In this work we characterize the underlying processes behind the IR-assisted ionization of helium by extreme ultra violet (XUV) attosecond radiation. We show that, if used in the form of an attosecond pulse train, the XUV radiation can have a good spectral resolution as well as good temporal resolution. Our experimental data and associated theoretical calculations show how to use the properties of attosecond XUV radiation to induce a desired excited state of helium, and how to tune the IR laser electric field to control the ionization pathways.

Original languageEnglish (US)
Article number032036
JournalJournal of Physics: Conference Series
Issue number3
StatePublished - Dec 24 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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