title: Unseeded velocity measurement by ozone tagging velocimetry.
abstract: Ozone tagging velocimetry is developed for unseeded velocity measurement of air flows. An ozone line is photochemically created by an ArF excimer laser. After a fixed time delay the ozone line is imaged with a KrF excimer laser sheet (248 nm) that photodissociates the ozone and produces vibrationally excited O(2). The O(2) is excited by the same 248-nm light through the Schumann-Runge band, B (3)Sigma(u)(-)(upsilon' =0, 2) ? X (3)Sigma(g)(-)(upsilon'' = 6, 7). An intensified CCD camera records the O(2) fluorescence from the initial and the final line positions to permit the velocity profile along the line to be determined.
authors.forename: R W
authors.initials: RW
authors.lastname: Pitz
authors.forename: T M
authors.initials: TM
authors.lastname: Brown
authors.forename: S P
authors.initials: SP
authors.lastname: Nandula
authors.forename: P A
authors.initials: PA
authors.lastname: Skaggs
authors.forename: P A
authors.initials: PA
authors.lastname: Debarber
authors.forename: M S
authors.initials: MS
authors.lastname: Brown
authors.forename: J
authors.initials: J
authors.lastname: Segall