Optical analysis of infrared spectra recorded with tapered chalcogenide glass fibers

被引：21

作者：

MacDonald, S ^{[1
]}

Michel, K ^{[1
]}

LeCoq, D ^{[1
]}

Boussard-Plédel, C ^{[1
]}

Bureau, B ^{[1
]}

机构：

[1] Univ Rennes 1, Inst Chim, CNRS, UMR 6512,Lab Verres & Ceram, F-35042 Rennes, France

来源：

OPTICAL MATERIALS | 2004年 / 25卷 / 02期

关键词：

D O I：

10.1016/S0925-3467(03)00266-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Infrared fiber evanescent wave spectroscopy (FEWS) spectra of water-ethanol mixtures are recorded and reconstructed thanks to a causal dispersion analysis technique. The complete expression of the complex reflection coefficients was used to determine the transmitted signal. The problems of shifting peaks or overlapping absorption bands from different chemical are well addressed. The effect of several parameters on the absorbance, such as the length of immersion and the diameter of the fiber probe have been calculated and fit well with experimental data. More generally, the agreement between experimental and calculated spectra suggest the presented analysis technique is more accurate than other current analysis techniques. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：171 / 178

页数：8

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