Laser guiding of cold molecules in a hollow optical fiber and continuous-wave cold molecular beam generation
Laser guiding of cold molecules in a hollow optical fiber and continuous-wave cold molecular beam generation
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DOI：
10.1088/1674-1056/21/3/033302
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发表时间：
2012-03
影响因子：
1.7
通讯作者：
Liu Run-qin;Yin Ya-ling;Yin Jian-ping
中科院分区：
文献类型：
--
作者：
Liu Run-qin;Yin Ya-ling;Yin Jian-ping
A novel scheme for guiding arbitrary buffer-gas cooled neutral molecules in a hollow optical fiber (HOF) using a red-detuned HE11 mode is proposed and analysed theoretically. We give the electromagnetic field distribution of the HE11 mode in the HOF and calculate the optical potential of an I2 molecule, and study the molecule guiding mechanism using a classical Monte Carlo simulation. Using a 6 kW input laser, an S-shape HOF with a 2 cm curvature radius for both bends, and an input molecular beam with a transverse temperature of 0.5 K and longitudinal temperature of 5 K, we obtain a guiding efficiency of ~0.126% for the scheme, and the transverse and longitudinal temperatures of the guided molecular beam are 1.9 mK and 0.5 K, respectively.
