Electric flux distribution in photodetachment of heteronuclear diatomic molecular negative ion  

作　　者：王德华 

机构地区：[1]College of Physics,Ludong University

出　　处：《Chinese Physics B》2010年第2期48-52,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 10604045);the University Science and Technology Planning Program of Shandong Province of China (Grant No. J09LA02)

摘　　要：The photodetachment of a hetero-nuclear diatomic molecular negative ion is studied by using a two-centre model. An analytic formula is presented for the electron flux distribution of a heteronuclear diatomic molecular negative ion. Taking HF- as an example, we calculated the electron flux distributions of this ion for various detached electron energies. The results show that the electron flux distributions exhibit oscillatory structures, which are caused by the interference effect between the two nuclei. Besides, the laser light polarization also has a great influence on the electron flux distribution. The oscillation amplitude is the largest when the laser polarization is parallel to the z-axis; when the laser polarization is perpendicular to the z-axis, the oscillation almost vanishes. This study provides a new understanding of the photodetachment of a heteronuclear diatomic molecular negative ion.The photodetachment of a hetero-nuclear diatomic molecular negative ion is studied by using a two-centre model. An analytic formula is presented for the electron flux distribution of a heteronuclear diatomic molecular negative ion. Taking HF- as an example, we calculated the electron flux distributions of this ion for various detached electron energies. The results show that the electron flux distributions exhibit oscillatory structures, which are caused by the interference effect between the two nuclei. Besides, the laser light polarization also has a great influence on the electron flux distribution. The oscillation amplitude is the largest when the laser polarization is parallel to the z-axis; when the laser polarization is perpendicular to the z-axis, the oscillation almost vanishes. This study provides a new understanding of the photodetachment of a heteronuclear diatomic molecular negative ion.

关 键 词：PHOTODETACHMENT electron flux two-centre model hetero-nuclear diatomic molecular negative ion 

分 类 号：O561[理学—原子与分子物理]