RESONANT 3-PHOTON IONIZATION AND 2-PHOTON LASER-INDUCED FLUORESCENCE OF ATOMIC OXYGEN IN A DISCHARGE AND POSTDISCHARGE

被引:7
作者
SULTAN, G
BARAVIAN, G
JOLLY, J
机构
[1] Laboratoire de Physique des Gaz et des Plasmas (Associé CNRS), Université de Paris Sud
关键词
D O I
10.1016/0009-2614(90)85514-D
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A method is presented which would allow the determination of the absolute number density of O atoms in discharge and post-discharge by simultaneous measurements of the number of photoions created from 2 + 1 resonant-enhanced multiphotoionization (REMPI) of atomic oxygen and the LIF (laser-induced fluorescence) from two-photon excitation. The REMPI technique is used in post-discharge, leading to the determination of the number density of O atoms in depletion condition in the interaction volume. The LIF technique is used in the same discharge conditions, allowing then the calibration which would be used to deduce the absolute number density of O atoms in a discharge. © 1990.
引用
收藏
页码:37 / 42
页数:6
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