Photoassociation of Long-Range nD Rydberg Molecules

被引:81
作者
Anderson, D. A. [1 ]
Miller, S. A. [1 ]
Raithel, G. [1 ]
机构
[1] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
基金
美国国家科学基金会;
关键词
ATOMS; SPECTROSCOPY; SCATTERING; COLLISIONS; STATES; CS; RB;
D O I
10.1103/PhysRevLett.112.163201
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We observe long-range homonuclear diatomic nD Rydberg molecules photoassociated out of an ultracold gas of Rb-87 atoms for 34 <= n <= 40. The measured ground-state binding energies of Rb-87(nD + 5S(1/2)) molecular states are larger than those of their Rb-87(nS + 5S(1/2)) counterparts, which shows the dependence of the molecular bond on the angular momentum of the Rydberg atom. We exhibit the transition of Rb-87(nD + 5S(1/2)) molecules from a molecular-binding-dominant regime at low n to a fine-structure-dominant regime at high n [akin to Hund's cases (a) and (c), respectively]. In the analysis, the fine structure of the nD Rydberg atom and the hyperfine structure of the 5S(1/2) atom are included.
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页数:5
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