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Proceedings Paper

Low velocity intense rubidium beam source from a 3D magneto-optical trap
Author(s): Xiaojia Wang; Yanying Feng; Hongbo Xue; Zhaoying Zhou
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Paper Abstract

We present an experimental set-up for the production of a beam source of cold 87Rb atoms, which is formed from a trapped cold atomic cloud in a three-dimensional (3D) magneto-optical trap (MOT). Via a radiation pressure difference generated by a specially designed leak tunnel along one trapping laser beam, the atoms are pushed out continuously with low velocity and high flux. The beam was measured to have a mean velocity of 12m/s and a longitudinal velocity spread of about 3m/s under nominal experimental conditions, based on the fluorescence and the time of flight (TOF) technologies. And its flux can be tuned by adjusting the MOT parameters from 108 to 109 atoms/s. Especially the beam performance dependence on trapping laser detuning and power is experimentally studied.

Paper Details

Date Published: 15 November 2011
PDF: 7 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 83210M (15 November 2011); doi: 10.1117/12.903772
Show Author Affiliations
Xiaojia Wang, North Univ. of China (China)
Tsinghua Univ. (China)
Yanying Feng, Tsinghua Univ. (China)
Joint Institute of Measurement Science (China)
Hongbo Xue, Tsinghua Univ. (China)
Zhaoying Zhou, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)

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