Radiative Force from Optical Cycling on a Diatomic Molecule

被引:175
作者
Shuman, E. S. [1 ]
Barry, J. F. [1 ]
Glenn, D. R. [1 ]
DeMille, D. [1 ]
机构
[1] Yale Univ, Dept Phys, New Haven, CT 06520 USA
关键词
SRF;
D O I
10.1103/PhysRevLett.103.223001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We demonstrate a scheme for optical cycling in the polar, diatomic molecule strontium monofluoride (SrF) using the X-2 Sigma(+)-> A(2)Pi(1/2) electronic transition. SrF's highly diagonal Franck-Condon factors suppress vibrational branching. We eliminate rotational branching by employing a quasicycling N=1 -> N-'=0 type transition in conjunction with magnetic field remixing of dark Zeeman sublevels. We observe cycling fluorescence and deflection through radiative force of an SrF molecular beam using this scheme. With straightforward improvements our scheme promises to allow more than 10(5) photon scatters, possibly enabling the direct laser cooling of SrF.
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页数:4
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