中国物理B ›› 2011, Vol. 20 ›› Issue (12): 123702-123702.doi: 10.1088/1674-1056/20/12/123702
• ATOMIC AND MOLECULAR PHYSICS • 上一篇 下一篇
张洪山, 姬中华, 元晋鹏, 赵延霆, 马杰, 汪丽蓉, 肖连团, 贾锁堂
Zhang Hong-Shan(张洪山), Ji Zhong-Hua(姬中华), Yuan Jin-Peng(元晋鹏), Zhao Yan-Ting(赵延霆)†, Ma Jie(马杰), Wang Li-Rong(汪丽蓉), Xiao Lian-Tuan(肖连团), and Jia Suo-Tang(贾锁堂)
摘要: We report on the observation of ultracold ground electric-state cesium molecules produced directly in a magneto- optical trap with a good signal-to-noise ratio. These molecules arise from the photoassociation of magneto-optical trap lasers and they are detected by resonantly enhanced multiphoton ionization technology. The production rate of ultracold cesium molecules is up to 4×104 s-1. We measure the characteristic time of the ground electric-state cesium molecules generated in the experiment and investigate the Cs2+ molecular ion intensity as a function of the trapping laser intensity and the ionization pulse laser energy. We conclude that the production of cold cesium molecules may be enhanced by using appropriate experimental parameters, which is useful for future experiments involving the production and trapping of ultracold ground electric-state molecules.
中图分类号: (Slowing and cooling of molecules)