PHOTODETACHMENT CROSS-SECTIONS FOR LI-

被引：23

作者：

DELLWO, J ^{[1
]}

LIU, Y ^{[1
]}

TANG, CY ^{[1
]}

PEGG, DJ ^{[1
]}

ALTON, GD ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB, DEPT PHYS, OAK RIDGE, TN 37831 USA

来源：

PHYSICAL REVIEW A | 1992年 / 46卷 / 07期

关键词：

D O I：

10.1103/PhysRevA.46.3924

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Cross sections and asymmetry parameters associated with the process of photodetaching an electron from the Li- ion via the process hnu + Li- --> Li(2 2S) + e-(epsilonp) have been measured at several photon energies including the region in the vicinity of the opening of the channel: hnu+Li- --> Li(2 2P) + e-(epsilons). Strong coupling between these channels produces anomalous behavior in the 2Sepsilonp channel cross section. The measured cross sections are slightly lower than the theoretical predictions, but are in essential agreement within the combined uncertainties in the two values. A search has also been made for a 1P-degrees excited state of Li- in the vicinity of the 2 2P threshold. The saturation characteristics of the photodetachment of Li- and D- ions have been investigated over a range of laser powers.

引用

页码：3924 / 3928

页数：5

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