| ATOMIC AND MOLECULAR PHYSICS |
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Cooling and Trapping 88Sr Atoms with 461nm Laser |
WANG Shao-Kai, WANG Qiang, LIN Yi-Ge, WANG Min-Ming, LIN Bai-Ke, ZANG
Er-Jun, LI Tian-Chu, FANG Zhan-Jun |
| National Institute of Metrology, Beijing 100013 |
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| Cite this article: |
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WANG Shao-Kai, WANG Qiang, LIN Yi-Ge et al 2009 Chin. Phys. Lett. 26 093202 |
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Abstract We report the experimental realization of a 88Sr magneto-optical trap (MOT) operating at the wavelength of 461nm. The MOT is loaded via a 32cm long spin-flip type Zeeman slower which enhances the MOT population by a factor of 22. The total laser power available in our experiment is about 300mW. We have trapped 1.6×108 88Sr atoms with a 679nm and 707nm repumping laser. The two repumping lasers enhance the trap population and trap lifetime by factors of 11 and 7, respectively. The 88Sr cloud has a temperature of about 2.3mK, measured by recording the time evolution of the absorption signal.
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| Keywords:
32.30.-r
37.10.De
37.10.Gh
95.55.Sh
42.60.Fc
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Received: 09 June 2009
Published: 28 August 2009
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| PACS: |
32.30.-r
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(Atomic spectra?)
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37.10.De
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(Atom cooling methods)
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37.10.Gh
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(Atom traps and guides)
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95.55.Sh
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(Auxiliary and recording instruments; clocks and frequency standards)
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42.60.Fc
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(Modulation, tuning, and mode locking)
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