Pitz R W, Brown T M, Nandula S P, Skaggs P A, Debarber P A, Brown M S, Segall J
Opt Lett. 1996 May 15;21(10):755-7. doi: 10.1364/ol.21.000755.
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.
臭氧标记测速技术被开发用于未加示踪粒子的气流速度测量。通过氩氟准分子激光光化学地产生一条臭氧线。经过固定的时间延迟后，用氪氟准分子激光片（248纳米）对臭氧线进行成像，该激光片使臭氧光解离并产生振动激发态的O(2)。O(2)通过舒曼-伦格带B (3)Σ(u)(-)(υ' =0, 2) ? X (3)Σ(g)(-)(υ'' = 6, 7)被相同的248纳米光激发。一台增强型电荷耦合器件相机记录初始和最终线位置处的O(2)荧光，以便确定沿线的速度剖面。
