Broadband cavity ringdown spectroscopy of the NO3 radical

被引：62

作者：

Ball, SM ^{[1
]}

Povey, IM ^{[1
]}

Norton, EG ^{[1
]}

Jones, RL ^{[1
]}

机构：

[1] Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 342卷 / 1-2期

基金：

英国自然环境研究理事会;

关键词：

D O I：

10.1016/S0009-2614(01)00573-5

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：

Cavity ringdown spectroscopy (CRDS) has been demonstrated using a broadband (20 nm) laser source and a two-dimensional clocked detector array. Absorption spectra of dilute samples (50-500 parts per trillion) of the nitrate radical, NO3, have been obtained between 650 and 670 nm by monitoring simultaneously the time and wavelength resolved output of a ringdown cavity. The potential of broadband CRDS for making measurements on samples containing multiple absorbers (e.g., atmospheric samples) is shown by applying analysis methods from differential optical absorption spectroscopy to quantify the NO, concentration in the presence of nitrogen dioxide impurities. (C) 2001 Elsevier Science B.V. All rights reserved.

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页码：113 / 120

页数：8

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