Nonsequential double ionization of the aligned hydrogen molecule in strong field

doi:10.1088/1674-1056/19/4/043303

中国物理B ›› 2010, Vol. 19 ›› Issue (4): 43303-43303.doi: 10.1088/1674-1056/19/4/043303

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Nonsequential double ionization of the aligned hydrogen molecule in strong field

李燕¹, 杨世平¹, 贾欣燕², 陈京³

(1)Department of Physics, Hebei Normal University, Shijiazhuang {\rm 050016, China; (2)Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China; (3)Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China;Center for Applied Physics and Technology, Peking University, Beijing 100871, China

收稿日期:2009-06-26 修回日期:2009-08-20 出版日期:2010-04-15 发布日期:2010-04-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No.~2006CB806000), Natural Science Foundation of Hebei Province, China (Grant No.~A2008000136) and CAEP Foundation (Grant Nos.~2006z0202 and 2008B0102007).

Nonsequential double ionization of the aligned hydrogen molecule in strong field

Li Yan(李燕)^a), Yang Shi-Ping(杨世平)^a)†, Jia Xin-Yan(贾欣燕)^b), and Chen Jing(陈京)^b)c)

^a Department of Physics, Hebei Normal University, Shijiazhuang 050016, China; ^b Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China; ^c Center for Applied Physics and Technology, Peking University, Beijing 100871, China

Received:2009-06-26 Revised:2009-08-20 Online:2010-04-15 Published:2010-04-15
Supported by:
Project supported by the National Basic Research Program of China (Grant No.~2006CB806000), Natural Science Foundation of Hebei Province, China (Grant No.~A2008000136) and CAEP Foundation (Grant Nos.~2006z0202 and 2008B0102007).

摘要/Abstract

摘要： This paper studies the nonsequential double ionization (NSDI) process of diatomic molecules aligned parallel and perpendicular to an intense linearly polarized laser field by using a three-dimensional semiclassical model. With this model, it achieves insight into the ion momentum distribution under the combined influence of a two-centre Coulomb potential and an intense laser field, and this result shows the significant influence of molecular alignment on the ratio between double and single ionization rate. Careful investigations show that the NSDI process for different alignment molecules has a close relation to the laser intensity and the different bounding electron distribution has a significant influence on the final ion momentum distribution.

Abstract: This paper studies the nonsequential double ionization (NSDI) process of diatomic molecules aligned parallel and perpendicular to an intense linearly polarized laser field by using a three-dimensional semiclassical model. With this model, it achieves insight into the ion momentum distribution under the combined influence of a two-centre Coulomb potential and an intense laser field, and this result shows the significant influence of molecular alignment on the ratio between double and single ionization rate. Careful investigations show that the NSDI process for different alignment molecules has a close relation to the laser intensity and the different bounding electron distribution has a significant influence on the final ion momentum distribution.

Key words: nonsequential double ionization, ionization probability, alignment molecule

中图分类号: (Autoionization, photoionization, and photodetachment)

33.80.Eh

31.15.xg (Semiclassical methods)

李燕, 杨世平, 贾欣燕, 陈京. Nonsequential double ionization of the aligned hydrogen molecule in strong field[J]. 中国物理B, 2010, 19(4): 43303-43303.

Li Yan(李燕), Yang Shi-Ping(杨世平), Jia Xin-Yan(贾欣燕), and Chen Jing(陈京). Nonsequential double ionization of the aligned hydrogen molecule in strong field[J]. Chin. Phys. B, 2010, 19(4): 43303-43303.

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Nonsequential double ionization of the aligned hydrogen molecule in strong field

Nonsequential double ionization of the aligned hydrogen molecule in strong field

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