Electron beam driven alkali metal atom source for loading a magneto-optical trap in a cryogenic environment
Electron beam driven alkali metal atom source for loading a magneto-optical trap in a cryogenic environment
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用于在低温环境中加载磁光陷阱的电子束驱动碱金属原子源
DOI：
10.1007/s00340-011-4447-x
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Haslinger S
中科院分区：
文献类型：
--
作者：
Haslinger S
我们提出了一个多功能和紧凑的电子束驱动的碱金属原子源，它可以在低温恒温器中实现。在小于10 mW的热负载下，归一化到加载到磁光阱（MOT）中的原子的热耗散比典型的碱金属分配器小约1000倍。在实验中观察到的MOT负载率与电子电流的线性标度表明，电子激发脱附是释放原子的相应机制。
We present a versatile and compact electron beam driven source for alkali metal atoms, which can be implemented in cryostats. With a heat load of less than 10 mW, the heat dissipation normalized to the atoms loaded into the magneto-optical trap (MOT) is about a factor 1000 smaller than for a typical alkali metal dispenser. The measured linear scaling of the MOT loading rate with electron current observed in the experiments indicates that electron stimulated desorption is the corresponding mechanism to release the atoms.