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Femtosecond two-photon ionization spectroscopy of the B state of Na3 clusters

✍ Scribed by T. Baumert; R. Thalweiser; G. Gerber

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 581 KB
Volume: 209
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)87196-a

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✦ Synopsis

We report time-resolved experiments studying the dynamics of the Nas 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 NaJ B state and in the Na3 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,. 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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