HIGH-RESOLUTION PHOTOABSORPTION MEASUREMENT AND MULTICHANNEL QUANTUM-DEFECT-THEORY ANALYSIS OF THE 2P(5)3S((1)P(1)) NS,ND AUTOIONIZING SERIES OF SODIUM

被引：19

作者：

BAIG, MA ^{[1
]}

BHATTI, SA ^{[1
]}

机构：

[1] PINSTECH, DIV APPL PHYS, ISLAMABAD, PAKISTAN

来源：

PHYSICAL REVIEW A | 1994年 / 50卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.50.2750

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We measured the photoabsorption spectrum of sodium in the 2p subshell excitation region using synchrotron radiation and a 3-m spectrograph at a resolution of +/-0.008 angstrom. In spite of the large number of overlapping structure due to the four ionization limits 2p(5)3s(P-3(210) and P-1(1)), well separated autoionizing Rydberg series are detected converging to the 2p(5)3s(P-1(1)) threshold. A three-channel quantum-defect-theory analysis is performed for the 2p(5)3s(P-1(1)ns and 2p(5)3s(P-1(1)nd autoionizing resonances. A simple n-channel multichannel quantum-defect-theory formula in terms of cofactors is presented for the calculation of the photoionization cross section for one open and (n-1) bound channels.

引用

页码：2750 / 2753

页数：4

共 19 条

[1] CENTRIFUGAL BARRIER EFFECTS IN THE HIGH RYDBERG STATES AND AUTOIONISING RESONANCES OF NEON [J].