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- Title
Three-peak Autler-Townes splitting in the photoelectron spectrum of Li<sub>2</sub> molecules caused by femtosecond laser pulses.
- Authors
Hu, Wen‐Hui; Yuan, Kai‐Jun; Han, Yong‐Chang; Shu, Chuan‐Cun; Cong, Shu‐Lin
- Abstract
Three-peak Autler-Townes (A-T) splitting in the resonant multiphoton ionization photoelectron spectrum for a rotating Li2 molecular system in femtosecond pulse laser fields is studied by using two-dimension time-dependent quantum wave packet method. The A-T splitting results from rapid Rabi oscillation caused by intense femtosecond laser pulses. Because of the effects of molecular rotation and alignment, the Rabi oscillation in the population distribution will be damped in a certain degree. The three-peak A-T splitting can only be observed for a strongly aligned molecule with rapid Rabi oscillation. The three-peak A-T splitting dynamics can be affected by intensity, duration, temporal profile of laser pulse, and initial molecular rotational temperature. The conditions to observe the A-T splitting are discussed in detail. © 2009 Wiley Periodicals, Inc. Int J Quantum Chem, 2010
- Subjects
MULTIPHOTON ionization; PHOTOELECTRONS; MOLECULAR dynamics; FEMTOSECOND lasers; OSCILLATIONS
- Publication
International Journal of Quantum Chemistry, 2010, Vol 110, Issue 6, p1224
- ISSN
0020-7608
- Publication type
Article
- DOI
10.1002/qua.22165