Phys. Rev. Lett. 97, 193001 (2006) [4 pages]Spatiotemporal Imaging of Ultrafast Molecular Motion: Collapse and Revival of the D2+ Nuclear Wave PacketReceived 12 August 2006; published 6 November 2006 We report on a real-time imaging of the ultrafast D2+ rovibrational nuclear wave-packet motion performed using a combination of a pump-probe setup with 7 fs laser pulses and a “reaction-microscope” spectrometer. We observe fast dephasing (collapse) of the vibrational wave packet and its subsequent revival and prove rotational excitation in ultrashort laser pulses. Channel-selective Fourier analysis of the wave packet’s long-term (∼3000 fs) evolution allows us to resolve its individual constituents, revealing unique information on the mechanisms of strong-field ionization and dissociation. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.97.193001
DOI:
10.1103/PhysRevLett.97.193001
PACS:
33.80.Rv, 32.80.Rm, 42.50.Hz
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