A novel gold-coated multimode fiber sensor

被引：11
|
作者：
Fontana, E [1 ]
机构：
[1] Univ Fed Pernambuco, Dept Eletron & Sistemas, CTG, BR-50740530 Recife, PE, Brazil
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2002年 / 50卷 / 01期
关键词：
chemical sensor; fiber sensor; gold; SPR; surface plasmon;
D O I：
10.1109/22.981251
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel optical-fiber sensor is proposed for use in chemical analysis. The sensor probe is made of a gold-coated multimode optical fiber, configured to exhibit surface plasmon resonance (SPR) when immersed in a wet environment. The proposed detection strategy comprises measurement of the image pattern irradiated by the fiber under monochromatic illumination. A theoretical model is proposed to determine device performance. From computer simulations, it is shown that the proposed configuration and detection strategy allows reaching a 30-fold enhancement in sensitivity relative to that obtained in previous SPR-based versions of the device.
引用
收藏
页码：82 / 87
页数：6
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