Plasmon type CO sensor based on In2O3(Sn) films

被引：0
|
作者：
Vaicikauskas, V
Januskevicius, R
Radavicius, E
Antanavicius, R
机构：
来源：
OPTICAL INORGANIC DIELECTRIC MATERIALS AND DEVICES | 1997年 / 2967卷
关键词：
surface plasmons; ellipsometry; dielectric permitivity; optical sensor; In2O3(Sn) films; CO sorption;
D O I：
10.1117/12.266546
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In2O3(Sn) film CO sensors in the Kretschmann configuration were investigated using a rotating analyzer spectrometer. From the experimental surface plasmon resonance (SPR) angular dependencies, applying the best fit method complex dielectric permitivity of In2O3(Sn) films (epsilon=2.4-i0.2) were obtained. Under exposition of sensor by CO gas at 134 degrees C temperature, SPR shifted to higher angles and sufficiently broadened. Most significant change possesses an imaginary part of dielectric permitivity -after 0.8% CO exposition it becomes 4.1, whereas a real part equals to 1.2.
引用
收藏
页码：251 / 254
页数：4
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