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Femtosecond two-photon ionization spectroscopy of the B state of Na_3 clusters

Baumert, Thomas
Thalweiser, Rainer
Gerber, Gustav

We report time-resolved experiments studying the dynamics of the Na_3 B-X system. Femtosecond pump-probe techniques combined with ion time-of-flight (TOF) and zero kinetic energy (ZEKE) photoelectron spectroscopy allow us to observe the three-dimensional wavepacket motion in the excited Na_3 B state and in the Na_3 X state. The ground state wavepacket is induced by stimulated emission pumping during the pump pulse. The X-state dynamics is dominated by the three vibrational modes of the Na_3. Furthermore we observed pseudorotational wavepacket motion in the B state. We do not observe a fragmentation of the B state within a time interval of 10 ps.

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@article{urn:nbn:de:hebis:34-2008102924934,
  author    ={Baumert, Thomas and Thalweiser, Rainer and Gerber, Gustav},
  title    ={Femtosecond two-photon ionization spectroscopy of the B state of Na_3 clusters},
  copyright  ={https://rightsstatements.org/page/InC/1.0/},
  language ={en},
  year   ={1993}
}