Chinese Journal of Lasers B, 1996, 5 (6): 511, 网络出版: 2006-12-04  

Laser Cooling and Trapping of Sodium Atoms in Magneto-optical Trap

Laser Cooling and Trapping of Sodium Atoms in Magneto-optical Trap
作者单位
Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
摘要
Abstract
We describe observations of Sodium atoms trapal in magneto-optical trap.The trapping and cooling forces were provided by six circularly polarized laser beams along orthogonal axes intersecting at the point where the magnetic field was zero and increased linearly in all directions. The setup was different from thais previously reported because two dye lasers were used and the re-pumping light was arranged with six laser beams. The trapping was very robust and not strict to densities of laser beams, imbalance of densities, circular polarization, magnetic field and remperature of vacuum chamber ect. The trapped atoms were compacted into a small region, the diameter measured by CCD camera was about 1.5~2 mm. The influence of re-pumping light on trapping was experimentally studied at different light intensities by using PMT and digital storage oscilloscope.

LIU Xunming, LIN Yueming, ZHOU Shanyu, HUO Yunsheng, WANG Yuzhu. Laser Cooling and Trapping of Sodium Atoms in Magneto-optical Trap[J]. Chinese Journal of Lasers B, 1996, 5(6): 511. LIU Xunming, LIN Yueming, ZHOU Shanyu, HUO Yunsheng, WANG Yuzhu. Laser Cooling and Trapping of Sodium Atoms in Magneto-optical Trap[J]. 中国激光(英文版), 1996, 5(6): 511.

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