Ammonia optical sensing by microring resonators

被引：83
作者：
Passaro, Vittorio M. N.
Dell'Olio, Francesco
De Leonardis, Francesco
机构：
[1] Plitecn Bari, Dipartimento Elettrotecn & Elettron, Photon Res Grp, I-70125 Bari, Italy
[2] Politecn Bari, Dipartimento Ingn Ambiente Sviluppo Sostebnibile, Photon Res Grp, I-74100 Taranto, Italy
来源：
SENSORS | 2007年 / 7卷 / 11期
关键词：
integrated optics; optical sensor; ring resonator; ammonia sensor;
D O I：
10.3390/s7112741
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A very compact (device area around 40 mu m(2)) optical ammonia sensor based on a microring resonator is presented in this work. Silicon- on- insulator technology is used in sensor design and a dye doped polymer is adopted as sensing material. The sensor exhibits a very good linearity and a minimum detectable refractive index shift of sensing material as low as 8x10(-5), with a detection limit around 4 parts per thousand.
引用
收藏
页码：2741 / 2749
页数：9
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