Route to Attosecond Nonlinear Spectroscopy

U. Graf, E. E. Serebryannikov, W. Schweinberger, M. Fiess, M. Schultze, A. M. Azzeer, R. Kienberger, F. Krausz, A. M. Zheltikov, E. Goulielmakis

Research output: Contribution to journalArticle

Abstract

We demonstrate generation of coherent microjoule-scale, low-order harmonic supercontinua in the deep and vacuum ultraviolet (4–9 eV), resulting from the nonlinear transformations of near-single-cycle laser pulses in a gas cell. We show theoretically that their formation is connected to a novel nonlinear regime, holding promise for the generation of powerful deep-UV and vacuum ultraviolet subfemtosecond pulses. Our work opens the route to pump-probe spectroscopy of subfemtosecond-scale valence-shell phenomena in atoms, molecules, and condensed matter.
Original languageEnglish
Article number243902
JournalPhysical Review Letters
Volume105
Issue number24
DOIs
Publication statusPublished - 10 Dec 2010
Externally publishedYes

Fields of Expertise

  • Advanced Materials Science

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