J4 ›› 2016, Vol. 33 ›› Issue (6): 647-652.

• Spectrascopy • Previous Articles     Next Articles

Time Delay dependence of photoelectron spectroscopy and state populations of nonadiabatic coupling molecules

GUO Wei, BAI Jing   

  1. 1 School of Electrical Engineering, University of South China, Hengyang, Hunan 421001, China; 2 State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Dalian, Liaoning 116023, China
  • Received:2015-11-05 Revised:2015-12-28 Published:2016-11-28 Online:2016-11-28

Abstract: The effect of the delay time on the photoelectron spectra and state populations of nonadiabatic coupling NaI molecules was investigated by pump-probe pulses via time-dependent wave packet approach. Wave packet moves periodically with roundtrip time 1000 fs. The wave packet splits into two parts in the crossing region firstly and secondly at delay time 200 fs and 800 fs, respectively. The periodical motion of the wave packet results in the periodical variation of photoelectron spectra. The wave packet splitting affects state populations. It is found that the wave packet motion and selective distribution of state populations can be achieved by adjusting pump-probe delay time. The results can provide some important basis for realizing the optical control of molecules experimentally.

Key words: quantum optics; state populations; time-dependent wave packet approach; photoelectron spectra; wave packet motion

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