Simultaneous real-time tracking of wave packets evolving on two different potential curves in H{sub 2}{sup +} and D{sub 2}{sup +}
Author(s)
Alnaser, AS
Ulrich, B
Tong, XM
Litvinyuk, IV
Maharjan, CM
Ranitovic, P
Osipov, T
Ali, R
Ghimire, S
Chang, Z
Lin, CD
Cocke, CL
Griffith University Author(s)
Year published
2005
Metadata
Show full item recordAbstract
We have used intense few-cycle laser pulses in a pump-probe arrangement to directly map, with high time resolution, the simultaneous evolution on two different potential curves of wave packets created when H{sub 2}{sup +} (D{sub 2}{sup +}) molecules were ionized by a strong laser field. The experimental "snapshots" were obtained by measuring in coincidence the kinetic energy distribution of the proton (deuteron) pairs produced in the Coulomb explosion of the H{sub 2}{sup +} (D{sub 2}{sup +}) molecular ions as a function of the time delay between the pump and the probe pulses. The time resolution was sufficient to reveal not ...
View more >We have used intense few-cycle laser pulses in a pump-probe arrangement to directly map, with high time resolution, the simultaneous evolution on two different potential curves of wave packets created when H{sub 2}{sup +} (D{sub 2}{sup +}) molecules were ionized by a strong laser field. The experimental "snapshots" were obtained by measuring in coincidence the kinetic energy distribution of the proton (deuteron) pairs produced in the Coulomb explosion of the H{sub 2}{sup +} (D{sub 2}{sup +}) molecular ions as a function of the time delay between the pump and the probe pulses. The time resolution was sufficient to reveal not only the evolution of the wave packet centroid but also the fundamentally wavelike features of the packets. A full quantum calculation of observed nuclear motion is in good agreement with the measured spectra.
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View more >We have used intense few-cycle laser pulses in a pump-probe arrangement to directly map, with high time resolution, the simultaneous evolution on two different potential curves of wave packets created when H{sub 2}{sup +} (D{sub 2}{sup +}) molecules were ionized by a strong laser field. The experimental "snapshots" were obtained by measuring in coincidence the kinetic energy distribution of the proton (deuteron) pairs produced in the Coulomb explosion of the H{sub 2}{sup +} (D{sub 2}{sup +}) molecular ions as a function of the time delay between the pump and the probe pulses. The time resolution was sufficient to reveal not only the evolution of the wave packet centroid but also the fundamentally wavelike features of the packets. A full quantum calculation of observed nuclear motion is in good agreement with the measured spectra.
View less >
Journal Title
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
72
Issue
3
Subject
Atomic and Molecular Physics
Mathematical Sciences
Physical Sciences
Chemical Sciences