Attosecond Probing of Vibrational Dynamics with High-Harmonic Generation

Details Attosecond Probing of Vibrational Dynamics with High-Harmonic Generation Attosecond Probing of Vibrational Dynamics with High-Harmonic Generation

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrvl..94e3004l&link_type=abstract

Physical Review Letters, vol. 94, Issue 5, id. 053004

Physics

91

Frequency Conversion, Harmonic Generation, Including Higher-Order Harmonic Generation, Multiphoton Ionization And Excitation To Highly Excited States

Scientific paper

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.

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