Electrostatic surface guiding for cold polar molecules: experimental demonstration.
Electrostatic surface guiding for cold polar molecules: experimental demonstration.
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DOI：
10.1103/physrevlett.100.043003
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发表时间：
2008-01
影响因子：
8.6
通讯作者：
Yong Xia;Yaling Yin;Haibo Chen;L. Deng;J. Yin
中科院分区：
文献类型：
--
作者：
Yong Xia;Yaling Yin;Haibo Chen;L. Deng;J. Yin
我们演示了一个长距离的44.5厘米，0.85毫米以上的电介质基板上的冷极性分子的静电表面引导，并测量了引导的超声D2 O/CH 3Br束的横向分布和纵向速度之一。同时，我们还研究了被引导分子束的相对引导效率和横向温度随引导电压的变化关系，并表明由Monte Carlo模拟和理论计算得到的绝对引导效率与测量得到的相对引导效率的3倍近似相等。
We demonstrate an electrostatic surface guiding for cold polar molecules over a long distance of 44.5 cm, 0.85 mm above a dielectric substrate, and measure the transverse distribution of the guided supersonic D2O/CH3Br beam and its longitudinal velocity one. Also, we study the dependence of the relative guiding efficiency and the transverse temperature of the guided molecular beam on the guiding voltage, and show that the absolute guiding efficiencies from the Monte Carlo simulation and theoretical calculation multiplied by 3 are about equal to the measured relative one.