物理学报2011，Vol.60Issue(10)：246-252,7.
激光冷却获得高亮度的亚稳态惰性气体原子束和原子阱
Bright metastable noble gas atomic beam and atom trap using laser cooling
摘要
Abstract
Metastable noble gas atomic beam is widely used in atomic and molecular physics studies.Using radio-frequency discharge and transverse laser cooling,we produced a well-collimated intense meta-stable Krypton beam.Numerical simulation is also used to analyze the trajectories of atoms in an optic field produced by transverse cooling laser beams.The charactersisticl of the atomic beam are determined by measuring the laser induced fluorescence.The atomic beam flux measured at 230 cm downstream is 1.6×1016 atoms/（s＊sr）,which is enhanced by two orders of magnitude.The Kr atoms are finally trapped in a magneto-optic trap.A total of 1.3×1010 meta-stable 84Kr atoms can be simultaneously trapped with a loading rate of 3.0×1011 atoms/s.The same setup is also successfully used to obtain a bright metastable atomic argon beam and trap.关键词
横向冷却/原子束/原子阱/惰性气体Key words
transverse cooling/atomic beam/atom trap/noble gas分类
数理科学引用本文复制引用
程存峰,杨国民,蒋蔚,潘虎,孙羽,刘安雯,成国胜,胡水明..激光冷却获得高亮度的亚稳态惰性气体原子束和原子阱[J].物理学报,2011,60(10):246-252,7.基金项目
国家自然科学基金 （）
中国科学院重大仪器研制项目（批准号：YZ200765）资助的课题 （）
