Observation of the last bound levels near the Na2 ground-state asymptote

被引：23

作者：

Elbs, M ^{[1
]}

Knöckel, H ^{[1
]}

Laue, T ^{[1
]}

Samuelis, C ^{[1
]}

Tiemann, E ^{[1
]}

机构：

[1] Leibniz Univ Hannover, Inst Quantenoptik, D-30167 Hannover, Germany

来源：

PHYSICAL REVIEW A | 1999年 / 59卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.59.3665

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A multistep laser excitation scheme was used to access the last, least bound levels close to the lowest asymptote 3s + 3s with the molecular states X(1)Sigma(g)(+) and a 3 Sigma(u)(+) of Na-2. All singlet levels within the last 10 cm(-1), and some tripler levels with sufficient singlet admixture, were observed. The level energies were determined with uncertainties of less than 22 MHz with respect to the dissociation limit. The hyperfine structure was resolved, and asymmetric line shapes due to predissociation by tunneling through the rotational barrier or electronic state coupling were recorded for levels above the dissociation limit. [S1050-2947(99)11705-0].

引用

页码：3665 / 3672

页数：8

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