Spatiotemporal Imaging of Ultrafast Molecular Motion: Collapse and Revival of the D{sub 2}{sup +} Nuclear Wave Packet

Journal Article · Fri Nov 10 00:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.193001· OSTI ID:20861102

Ergler, Th; Rudenko, A; Zrost, K; Schroeter, C D; Moshammer, R; Ullrich, J ^[1]; Feuerstein, B ^[1]

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1. Max-Planck-Institut fuer Kernphysik, D-69029 Heidelberg (Germany)

We report on a real-time imaging of the ultrafast D{sub 2}{sup +} 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 ({approx}3000 fs) evolution allows us to resolve its individual constituents, revealing unique information on the mechanisms of strong-field ionization and dissociation.

• OSTI ID: 20861102
• Journal Information: Physical Review Letters, Vol. 97, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.97.193001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
EVOLUTION
EXCITATION
FOURIER ANALYSIS
IONIZATION
LASERS
PULSES
SPECTROMETERS
WAVE PACKETS