Cavity ringdown spectroscopy: Broad band absolute absorption measurements

被引:62
作者
Romanini, D
Kachanov, AA
Stoeckel, F
机构
[1] Lab. de Spectrométrie Phys., CNRS UMR 5588, Univ. J. Fourier-Grenoble I, B.P. 87
关键词
D O I
10.1016/S0009-2614(97)00407-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Here we report further results in our recent extension of cavity ring down spectroscopy (CRDS) to CW single frequency lasers. We previously pointed out the excellent reproducibility of our spectra, in particular the baseline measurements obtained from the empty cavity. The ability of accurately measuring the zero absorption baseline is essential when studying very broad or congested absorption spectra or even continua. We demonstrate the performance of our CW-CRDS setup by obtaining the absolute absorption spectrum of a weak and broad overtone transition in CHF3. We also discuss how the present results will apply to conventional pulsed-CRDS. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:546 / 550
页数:5
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