摘要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 1.6×10888Sr 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.
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 1.6×10888Sr 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.
WANG Shao-Kai;WANG Qiang;LIN Yi-Ge;WANG Min-Ming;LIN Bai-Ke;ZANGEr-Jun;LI Tian-Chu;FANG Zhan-Jun. Cooling and Trapping 88Sr Atoms with 461nm Laser[J]. 中国物理快报, 2009, 26(9): 93202-093202.
WANG Shao-Kai, WANG Qiang, LIN Yi-Ge, WANG Min-Ming, LIN Bai-Ke, ZANGEr-Jun, LI Tian-Chu, FANG Zhan-Jun. Cooling and Trapping 88Sr Atoms with 461nm Laser. Chin. Phys. Lett., 2009, 26(9): 93202-093202.
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2009, Vol. 26 
