Production of rovibronic-ground-state RbCs molecules via two-photon-cascade decay

被引：47

作者：

Shimasaki, Toshihiko ^{[1
]}

Bellos, Michael ^{[1
]}

Bruzewicz, C. D. ^{[1
]}

Lasner, Zack ^{[1
]}

DeMille, David ^{[1
]}

机构：

[1] Yale Univ, Dept Phys, New Haven, CT 06520 USA

来源：

PHYSICAL REVIEW A | 2015年 / 91卷 / 02期

关键词：

POLAR-MOLECULES; PHOTOASSOCIATION; ATOMS;

D O I：

10.1103/PhysRevA.91.021401

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the production of ultracold RbCs molecules in the rovibronic ground state, i.e., X (1)Sigma(+) (v = 0, J = 0), by short-range photoassociation to the 2 (3)Pi(0) state followed by spontaneous emission. We use narrow-band depletion spectroscopy to probe the distribution of rotational levels formed in the X (1)Sigma(+)( v = 0) state. We conclude, based on selection rules, that the primary decay route to X (1)Sigma(+) (v = 0) is a two-step cascade decay that leads to as much as 33% branching into the J = 0 rotational level. The experimental simplicity of our scheme opens up the possibility of easier access to the study and manipulation of ultracold heteronuclear molecules in the rovibronic ground state.

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页数：5

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