钴原子激发态光电离的实验研究  

Investigation on the Photoionization of the Cobalt Atoms in Experiment

作　　者：张科[1] 余海军[1] 曲泽华[2] 汪小丽[2] 郑贤锋[2] 崔执凤[2] 

机构地区：[1]淮南师范学院物理与电子信息系,安徽淮南232001 [2]安徽师范大学原子与分子物理研究所,安徽芜湖241000

出　　处：《安徽师范大学学报（自然科学版）》2015年第4期343-346 391,共5页Journal of Anhui Normal University(Natural Science)

基　　金：安徽高校省级自然科学研究基金(KJ2013Z098)

摘　　要：文章报道了在300-310nm波长范围内3d过渡金属Co原子共振增强多光子电离(REMPI)的实验研究结果.实验中采用激光烧蚀和高压脉冲超声分子束相结合的技术制备等离子体,获得的等离子体与探测激光作用形成光电离产物,由飞行时间质谱仪对光电离产物进行甄别.通过分析光电离产物产额随探测激光强度的变化关系,得到了Co原子激发态的绝对光电离截面.This paper reports the results that the resonance-enhanced multi-photonionization( REMPI) of the cobalt atom of 3d transition metals in the range of 300- 310 nm wavelength. Laser ablation coupled with high voltage pulsed supersonic molecular beam are used to produce plasmas in the experiment,ions are obtained from the interaction between plasma and probe laser,and the ions are detected using the time of flight mass spectrometer. By analyzing the changing relation between product of photoionization and laser intensity,the photoionization cross section of Co atomic in excited states is measured.

关 键 词：钴原子 激发态 共振增强多光子电离 光电离截面 

分 类 号：O562.4[理学—原子与分子物理]