脉冲激光法直接测量EuZ^6P_(7/2),Z^8P_(9/2)的能级寿命  

Lifetime measurement for z^6P_(7/2) anp z^8P_(9/2) states of europium atom using laser pulse method

作　　者：侯耀武[1] 明长江[1] 孙孝忠[1] 屈福生[1] 王文韵[1] 

机构地区：[1]中国科学院长春应用化学研究所

出　　处：《激光杂志》1987年第5期316-319,共4页Laser Journal

摘　　要：一台小型原子束装置用来将Eu原子蒸发成束,以氮分子激光泵浦的染料激光激发a^8S_(7/2)—Z^6P_(7/2)(5765A),a^8S_(7/2)—Z^8P_(9/2)(6018A)两跃迁,经快响应光电倍增管探测,在存贮示波器上提取信号。测得Z^6P_(7/2)和Z^8P_(9/2)两能态的平均寿命分别为(890±25)ns和(1070±30)ns。The atomic vapor of europium was produced in a small atomic beom equipment and its transitions a^8S7/2-z^8P7/2（5765 A） and ,a^8S7/2-Z^8aP9/2 （6018 A） we re excited by a nitrogen laser pumped tunab le dye laser. The fluorescence decay signals were received by a fast-response PMT and displayed on a storage oscillograph, The lifetimes of z^6P7/2 and z^8P9/2. states obtajned are （890± 25） ns and （1070 ±30） ns, respectively.

关 键 词：脉冲激光法 直接测量 能级寿命 光电倍增管 激光激发 激光泵浦 平均寿命 原子束 氮分子 跃迁 

分 类 号：O562.3[理学—原子与分子物理] TD421.59[理学—物理]