title: Picosecond laser-spectroscopy measurement of hydroxyl fluorescence lifetime in flames.
abstract: Data are reported for the first known application of picosecond laser spectroscopy to the measurement of collisional quenching rates by time-resolved laser-induced fluorescence in flames. Collisional quenching rates are important for the determination of species concentrations by laser-induced fluorescence. The collisional quenching lifetime following excitation of the R(2)(4) A(2)Sigma(+) (nu' = 0) ? X(2)II (nu'' = 0) transition was measured to be 1.8 nsec in the burned-gas region of an atmospheric-pressure, premixed methane-air flame.
authors.forename: N S
authors.initials: NS
authors.lastname: Bergano
authors.forename: P A
authors.initials: PA
authors.lastname: Jaanimagi
authors.forename: M M
authors.initials: MM
authors.lastname: Salour
authors.forename: J H
authors.initials: JH
authors.lastname: Bechtel