Influence of laser fields on the vibrational population of molecules and its wave-packet dynamical investigation

doi:10.1088/1674-1056/19/12/123301

中国物理B ›› 2010, Vol. 19 ›› Issue (12): 123301-123301.doi: 10.1088/1674-1056/19/12/123301

Influence of laser fields on the vibrational population of molecules and its wave-packet dynamical investigation

王军¹, 刘芳¹, 岳大光¹, 赵娟¹, 许燕¹, 孟庆田², Liu Wing-Ki³

(1)College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; (2)College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1; (3)Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1

收稿日期:2010-01-24 修回日期:2010-03-11 出版日期:2010-12-15 发布日期:2010-12-15
基金资助:
Project supported by the Natural Science Foundation of Shandong Province of China (Grant No. Y2006A23), the National Basic Research Program of China (Grant No. 2006CB806000), and the Open Fund of the State Key Laboratory of High Field Laser Physics (Shanghai Institute of Optics and Fine Mechanics).

Influence of laser fields on the vibrational population of molecules and its wave-packet dynamical investigation

Wang Jun(王军)^a), Liu Fang(刘芳)^a), Yue Da-Guang(岳大光)^a), Zhao Juan(赵娟)^a), Xu Yan(许燕)^a), Meng Qing-Tian(孟庆田)^a)b)†, and Liu Wing-Ki^b)

^a College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; ^b Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1

Received:2010-01-24 Revised:2010-03-11 Online:2010-12-15 Published:2010-12-15
Supported by:
Project supported by the Natural Science Foundation of Shandong Province of China (Grant No. Y2006A23), the National Basic Research Program of China (Grant No. 2006CB806000), and the Open Fund of the State Key Laboratory of High Field Laser Physics (Shanghai Institute of Optics and Fine Mechanics).

摘要/Abstract

摘要： The time-dependent wave packet method is used to investigate the influence of laser-fields on the vibrational population of molecules. For a two-state system in laser fields, the populations on different vibrational levels of the upper and lower electronic states are given by wavefunctions obtained by solving the Schrödinger equation with the split-operator method. The calculation shows that the field parameters, such as intensity, wavelength, duration, and delay time etc. can have different influences on the vibrational population. By varying the laser parameters appropriately one can control the evolution of wave packet and so the vibrational population in each state, which will benefit the light manipulation of atomic and molecular processes.

Abstract: The time-dependent wave packet method is used to investigate the influence of laser-fields on the vibrational population of molecules. For a two-state system in laser fields, the populations on different vibrational levels of the upper and lower electronic states are given by wavefunctions obtained by solving the Schrödinger equation with the split-operator method. The calculation shows that the field parameters, such as intensity, wavelength, duration, and delay time etc. can have different influences on the vibrational population. By varying the laser parameters appropriately one can control the evolution of wave packet and so the vibrational population in each state, which will benefit the light manipulation of atomic and molecular processes.

Key words: intense laser field, time-dependent wave packet method, light-matter interaction, vibrational population

中图分类号: (Rotation, vibration, and vibration-rotation constants)

33.15.Mt

33.80.-b (Photon interactions with molecules)

王军, 刘芳, 岳大光, 赵娟, 许燕, 孟庆田, Liu Wing-Ki. Influence of laser fields on the vibrational population of molecules and its wave-packet dynamical investigation[J]. 中国物理B, 2010, 19(12): 123301-123301.

Wang Jun(王军), Liu Fang(刘芳), Yue Da-Guang(岳大光), Zhao Juan(赵娟), Xu Yan(许燕), Meng Qing-Tian(孟庆田), and Liu Wing-Ki. Influence of laser fields on the vibrational population of molecules and its wave-packet dynamical investigation[J]. Chin. Phys. B, 2010, 19(12): 123301-123301.

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Influence of laser fields on the vibrational population of molecules and its wave-packet dynamical investigation

Influence of laser fields on the vibrational population of molecules and its wave-packet dynamical investigation

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