Autler–Townes splitting in photoelectron spectra of K2 molecule

doi:10.1088/1674-1056/21/2/023302

Abstract We investigate Autler-Townes splitting in the photoelectron spectra of K₂ molecule driven by pump-probe pulses via employing the time-dependent wave packet approach. It is found that the magnitude of Aulter-Townes splitting varies with the wavelength of the intense laser pulse. In particular, the phenomenon of Aulter-Townes splitting vanishes for the far-off resonance of the pump pulse. Also, the split peaks of Autler-Townes in the case of resonant pump pulse give us an approach to directly obtaining the transition dipole moment of a molecule.

Keywords: Autler-Townes splitting photoelectron spectra K₂ molecule wave packet

Received: 11 March 2011
Revised: 25 April 2011
Accepted manuscript online:

PACS:	33.60.+q	(Photoelectron spectra )
	42.50.Hz	(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
	33.20.Xx	(Spectra induced by strong-field or attosecond laser irradiation)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 91021009 and 10874102) and the Research Fund for the Doctoral Program of Higher Education, China (Grant No. 200804220004).

Corresponding Authors: Zheng Yu-Jun,yzheng@sdu.edu.cn
E-mail: yzheng@sdu.edu.cn

Cite this article:

Yao Hong-Bin(姚洪斌) and Zheng Yu-Jun(郑雨军) Autler–Townes splitting in photoelectron spectra of K₂ molecule 2012 Chin. Phys. B 21 023302

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Autler–Townes splitting in photoelectron spectra of K2 molecule

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Autler–Townes splitting in photoelectron spectra of K₂ molecule