✦ LIBER ✦

Fluorescence lifetimes for nitric oxide in atmospheric pressure flames using picosecond excitation

✍ Scribed by Ralf Schwarzwald; Penelope Monkhouse; Jürgen Wolfrum

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 450 KB
Volume: 158
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(89)87293-8

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✦ Synopsis

Direct measurements are reported of the NO( A *Z +, u' = O-X ZfI) fluorescence lifetime in premixed atmospheric flames, using a picosecond distributed feedback dye laser for excitation. A new version of the distributed oscillator has been designed to allow more convenient tuning of the dye laser. For the NO lifetimes, an average value of 1.7 + 0.3 ns was ohtained in low concentration methane/nitrous oxide flames while in rich methane/air flames doped with l-296 NO, the average value was 1.5 f 0.2 ns. ' To whom correspondence should be addressed.

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