Phys. Rev. Lett. 94, 053004 (2005) [4 pages]Attosecond Probing of Vibrational Dynamics with High-Harmonic GenerationReceived 22 July 2004; published 11 February 2005 The numerical solution of the time-dependent Schrödinger equation for vibrating hydrogen molecules in few-cycle laser pulses shows that high-harmonic generation is sensitive to the laser-induced vibrational motion. More intense harmonics are generated in heavier isotopes, the difference increasing with the harmonic frequency. Analytical theory reveals a dependence of the harmonics on the vibrational autocorrelation function. With the help of a genetic algorithm, the nuclear motion can be reconstructed from the harmonic spectra with sub-fs time resolution. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.053004
DOI:
10.1103/PhysRevLett.94.053004
PACS:
42.65.Ky, 33.80.Rv
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