期刊论文

Lu, Xingqiang

英文

PHYSICAL CHEMISTRY CHEMICAL PHYSICS

1463-9076

2014

16

38

20755-20762

10.1039/c4cp02258k

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41104094, 11174119]; Research Fund for the Doctoral Program of Higher Education, State Education Ministry [20114324120002]; Research Foundation of Education Bureau of Hunan Province [12C0370]; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education MinistryScientific Research Foundation for the Returned Overseas Chinese Scholars

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We theoretically investigated Autler-Townes (AT) splitting in the photoelectron spectra of a four-level ladder K2 molecule driven by pump1-pump2-probe pulses by employing the time-dependent wave packet approach. The effect of pump-2 laser intensity and wavelength on AT splitting was studied for the first time. Triple splitting with asymmetric profiles arises because of the non-resonant excitation. The triple splitting transforms to double splitting when pump-2 detuning approaches ±1/2 times of pump-1 Rabi frequency. The splitting between two s...