The electron affinity of phosphorus

被引：20

作者：

Andersson, P. ^{[1
]}

Lindahl, A. O.

Alfredsson, C.

Rogstrom, L.

Diehl, C.

Pegg, D. J.

Hanstorp, D.

机构：

[1] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden

[2] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[3] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2007年 / 40卷 / 20期

关键词：

D O I：

10.1088/0953-4075/40/20/010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have measured the energies of all three fine structure components in the P-3(J) ground state of the negative ion of phosphorus using laser photodetachment threshold spectroscopy. The experiment yielded an electron affinity of 746.68( 6) meV. The Delta J = 2-0, 2-1 and 1-0 fine structure splittings were determined to be 32.73( 7) meV, 22.48( 7) meV and 10.25( 3) meV, respectively. In the experiment, a mass selected beam of P- ions was merged with the output from a pulsed infrared optical parametric oscillator. The residual atoms produced in the photodetachment process were detected and used as a monitor of the photon- energy dependence of the relative cross section. The Wigner law was fitted to each of the three observed onsets of production of neutrals in order to extract the threshold energies.

引用

页码：4097 / 4107

页数：11

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