Low velocity intense rubidium beam source from a 3D magneto-optical trap

Xiaojia Wang; Yanying Feng; Hongbo Xue; Zhaoying Zhou

doi:10.1117/12.903772

15 November 2011 Low velocity intense rubidium beam source from a 3D magneto-optical trap

Xiaojia Wang, Yanying Feng, Hongbo Xue, Zhaoying Zhou

Proceedings Volume 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation; 83210M (2011) https://doi.org/10.1117/12.903772
Event: Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 2011, Yunnan, China

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.

Citation Download Citation

Xiaojia Wang, Yanying Feng, Hongbo Xue, and Zhaoying Zhou "Low velocity intense rubidium beam source from a 3D magneto-optical trap", Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 83210M (15 November 2011); https://doi.org/10.1117/12.903772

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