Infrared cavity ringdown laser absorption spectroscopy (IR-CRLAS) in low pressure flames.

Autor: Scherer, J.J., Voelkel, D., Rakestraw, D.J.
Předmět:
Zdroj: Applied Physics B: Lasers & Optics; 1997, Vol. 64 Issue 6, p699, 7p
Abstrakt: We report the first application of Infrared Cavity Ringdown Laser Absorption Spectroscopy (IR-CRLAS) as a diagnostic tool for combustion chemistry studies. The high sensitivity (10[sup -5] fractional absorption) and generality of IR-CRLAS for combustion studies is demonstrated for low pressure laminar flames and is shown to be robust even in sooting environments with high temperature gradients. The ability to obtain (1-D) spatially resolved spectra of both reactants and products within a narrow spectral region is also demonstrated. In these initial flame studies, two information rich mid-infrared spectral regions are probed at Doppler-limited resolution, centered about 1.5 μm and 3.3 μm. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index