摘要
用 YAG激光器的四倍频光光解 CF3 I得到 I( 52 p1/2 )。通过测量 I( 52 p1/2 )跃迁到基态而发出的 1 .3 1 5μm荧光得到 I( 52 p1/2 )的自发辐射寿命为 0 .0 3 7± 0 .0 0 5s,测得 CF3 I、O2 、He对 I( 52 p1/2 )的猝灭常数分别为 80 .69Pa-1s-1、2 99.97Pa-1s-1及 2 9.3 3 Pa-1s-1。
WT5”BZ]The fourth harmonic of the YAG fundamental 1.064μm is used to generate the electronically excited iodine I(5 2p 1/2 ) through the photolysis of CF 3I.The direct detection of the decay of the fluorescence at 1.315μm has been made to investigate the spontaneous radiation life time of I(5 2p 1/2 ) and the quenching rate constants of the electronically excited iodine atom by CF 3I、O 2 and He. The results are: 0.037±0.005s,80.69Pa 1 s 1 ,299.97Pa 1 s -1 and 29.33Pa -1 s -1 respectively. [WT5”HZ]
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2000年第2期134-136,共3页
High Power Laser and Particle Beams
基金
国家863激光技术领域资肋课题
关键词
电子激发态磺原子
光解
动力学
YAG激光器
electronically excited iodine atom
fluorescence
quenching rate constant
spontaneous radiation life time
