Abstract.
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 μm which excites the 2ν band of carbon monoxide (CO); fluorescence resulting from excited CO is collected at 4.7 μm 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.
This is a preview of subscription content, log in via an institution to check access.
Author information
Authors and Affiliations
Additional information
Received: 30 July 1999 / Published online: 16 September 1999
Rights and permissions
About this article
Cite this article
Kirby, B., Hanson, R. Planar laser-induced fluorescence imaging of carbon monoxide using vibrational (infrared) transitions. Appl Phys B 69, 505–507 (1999). https://doi.org/10.1007/s003400050843
Published:
Issue Date:
DOI: https://doi.org/10.1007/s003400050843