Dynamics of vibrational wave packets in the C1Πu state of Cs2

G. Rodriguez, J. G. Eden

Research output: Contribution to journalArticlepeer-review


The dynamics of vibrational wave packets in the weakly predissociated C1Πu of Cs2 have been examined by two color, femtosecond laser pump-probe techniques. The motion of the wave packet is detected by photoionizing the dimer with a time-delayed 620nm pulse and monitoring the time-and energy-integrated photoelectron signal with a proportional counter. Since the anharmonicity of Cs2(C1Πu is light (ωeexe≈700) and the ground state vibrational manifold is equilibrated at T≈500 K, wave packets consisting of the superposition of wavefunctions of more than 20 vibrational levels are formed that dephase in ≈ 18 ps.

Original languageEnglish (US)
Pages (from-to)371-379
Number of pages9
JournalChemical Physics Letters
Issue number4-5
StatePublished - Apr 16 1993

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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