SATURATED 2D-LIF OF OH AND 2D DETERMINATION OF EFFECTIVE COLLISIONAL LIFETIMES IN ATMOSPHERIC-PRESSURE FLAMES

被引：28

作者：

SCHAFER, M

KETTERLE, W

WOLFRUM, J

机构：

[1] Physikalisch-Chemisches Institut der Universität Heidelberg, Heidelberg, W-6900

来源：

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY | 1991年 / 52卷 / 05期

关键词：

D O I：

10.1007/BF00325493

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Saturation of two-dimensional laser-induced fluorescence is demonstrated using the coincidence between the strong 0-0 vibrational transition of OH around 308 nm and the emission of a tunable XeCl excimer laser. The 2D images were insensitive to variations in the laser power, implying reduced sensitivity to quenching processes. The ratio of the 2D images in the linear and saturated regimes show two-dimensional variations in the saturation intensity. Since saturation intensity is proportional to the quenching rate, this novel method allows one to check for variations in collisional lifetimes across the flame.

引用

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页码：341 / 346

页数：6

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