Ammonia optical sensing by microring resonators

被引：82

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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