中国物理B ›› 2010, Vol. 19 ›› Issue (2): 23202-023202.doi: 10.1088/1674-1056/19/2/023202

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How to measure the internuclear vector from photoelectron angular distributions

J. T.Wang1, D. S.Guo1, 任向河2, 张敬涛2, 王懿2, 徐至展2   

  1. (1)Department of Physics, Southern University and A & M College, Baton Rouge, Louisiana 70813 USA; (2)State Key Laboratory for High-Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2009-04-07 修回日期:2009-05-22 出版日期:2010-02-15 发布日期:2010-02-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No.~10774153), the National Basic Research Program of China (Grant No.~2006CD806000), the Shanghai ``Phosphor'' Science Foundation, China (Grant No.~08QH1402400).

How to measure the internuclear vector from photoelectron angular distributions

Ren Xiang-He(任向河)a), Zhang Jing-Tao(张敬涛)a)†, Wang Yi(王懿) a), Xu Zhi-Zhan(徐至展)a), J.~T. Wangb), and D.~S. Guob)   

  1. a State Key Laboratory for High-Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; b Department of Physics, Southern University and A & M College, Baton Rouge, Louisiana 70813 USA
  • Received:2009-04-07 Revised:2009-05-22 Online:2010-02-15 Published:2010-02-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No.~10774153), the National Basic Research Program of China (Grant No.~2006CD806000), the Shanghai ``Phosphor'' Science Foundation, China (Grant No.~08QH1402400).

摘要: This paper uses a nonperturbative scattering theory to study photoelectron angular distributions of homonuclear diatomic molecules irradiated by circularly polarized laser fields. This study shows that the nonisotropic feature of photoelectron angular distributions is not due to the polarization of the laser field but the internuclear vector of the molecules. It suggests a method to measure the molecular orientation and the internuclear distance of molecules through the measurement of photoelectron angular distributions.

Abstract: This paper uses a nonperturbative scattering theory to study photoelectron angular distributions of homonuclear diatomic molecules irradiated by circularly polarized laser fields. This study shows that the nonisotropic feature of photoelectron angular distributions is not due to the polarization of the laser field but the internuclear vector of the molecules. It suggests a method to measure the molecular orientation and the internuclear distance of molecules through the measurement of photoelectron angular distributions.

Key words: photoelectron angular distributions, internuclear distance, photoionization

中图分类号:  (Photoelectron spectra )

  • 33.60.+q
33.80.Eh (Autoionization, photoionization, and photodetachment)