Infrared glass fibers for evanescent wave spectroscopy

被引:15
作者
Boussard-Plédel, C [1 ]
Hocdé, S [1 ]
Fonteneau, G [1 ]
Ma, HL [1 ]
Zhang, XH [1 ]
Le Foulgoc, K [1 ]
Lucas, J [1 ]
Perio, B [1 ]
Hamelin, J [1 ]
机构
[1] Univ Rennes, Lab Verres & Ceram, F-35042 Rennes, France
来源
SPECIALTY FIBER OPTICS FOR MEDICAL APPLICATIONS, PROCEEDINGS OF | 1999年 / 3596卷
关键词
IR spectroscopy; evanescent wave; chalcogenide glass; fiber; microwave;
D O I
10.1117/12.346706
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
IR glass optical fibers have been developed in order to optimize their response when they are used as evanescent wave chemical sensors, The diameter of the sensitive part of the fiber can be reduced by tapering the fiber during the drawing process or by chemical polishing. In using an FTIR spectrometer associated with a MCT detector, it was possible to evaluate the influence of the fiber diameter on the polymer coating IR signature as well as the sensitivity of a such sensor. The high flexibility of thin fibers allows the achievement of a detection probe which has been introduced in a microwave oven in order to follow a chemical reaction. It is verified that the chalcogen-based fiber is not sensitive to microwave radiation and gives excellent on line IR fingerprints to check kinetics and reaction mechanisms.
引用
收藏
页码:91 / 98
页数:8
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