Abstract

We observe high-order harmonic spectra generated from a thin atomic medium, Ar, Kr, and Xe, by intense 800-nm and 1300-nm femtosecond pulses. A clear signature of a single-atom response is observed in the harmonic spectra. Especially in the case of Ar, a Cooper minimum, reflecting the electronic structure of the atom, is observed in the harmonic spectra. We successfully extract the photorecombination cross sections of the atoms in the field-free condition with the help of an accurate recolliding electron wave packet. The present protocol paves the way for exploring ultrafast imaging of molecular dynamics with attosecond resolution.

Department(s)

Physics

Keywords and Phrases

Atomic Physics; Atoms; Dynamics; Electromagnetic Pulse; Electronic Structure; Harmonic Analysis; Krypton; Molecular Dynamics; Quantum Chemistry; Ultrashort Pulses; Xenon, Atomic Mediums; Attosecond Resolutions; Cooper Minimums; Cross Sections; Electron Wave Packets; Femtosecond Pulses; Photorecombination; Ultrafast Imaging, Atomic Spectroscopy

International Standard Serial Number (ISSN)

1050-2947

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2008 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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