Planar laser-induced fluorescence imaging of carbon monoxide using vibrational (infrared) transitions

被引：41
|
作者：
Kirby, BJ [1 ]
Hanson, RK [1 ]
机构：
[1] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 1999年 / 69卷 / 5-6期
关键词：
D O I：
10.1007/s003400050843
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a new imaging diagnostic suitable for measurements of infrared-active molecules, namely infrared planar laser-induced fluorescence (IR PLIF), in which a tunable infrared source is used to excite vibrational transitions in molecules and vibrational fluorescence is collected by an infrared camera. A nanosecond-pulse Nd:YAG-pumped KTP/KTA OPO/OPA system is used to generate 12 mJ of tunable output near 2.35 mu m which excites the 2 upsilon band of carbon monoxide (CO); fluorescence resulting from excited CO is collected at 4.7 mu m by using an InSb focal plane array. Quantitative, high-SNR PLIF imaging of gas-phase CO is demonstrated at a 10-Hz acquisition rate with a minimum detection limit of 1350 ppm at 300 K.
引用
收藏
页码：505 / 507
页数：3
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