Real-time and low-cost sensing technique based on photonic bandgap structures

被引：10

作者：

Castello, J. G. ^{[1
]}

Toccafondo, V. ^{[1
]}

Perez-Millan, P. ^{[1
]}

Losilla, N. S. ^{[1
]}

Cruz, J. L. ^{[2
]}

Andres, M. V. ^{[2
]}

Garcia-Ruperez, J. ^{[1
]}

机构：

[1] Univ Politecn Valencia, Nanophoton Technol Ctr, Valencia 46022, Spain

[2] Univ Valencia, Dept Fis Aplicada & Electromagnetismo, E-46100 Valencia, Spain

来源：

OPTICS LETTERS | 2011年 / 36卷 / 14期

关键词：

BIOSENSOR ARRAY; WAVE-GUIDES; SLOW-LIGHT; SENSORS;

D O I：

10.1364/OL.36.002707

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A technique for the development of low-cost and high-sensitivity photonic biosensing devices is proposed and experimentally demonstrated. In this technique, a photonic bandgap structure is used as transducer, but its readout is performed by simply using a broadband source, an optical filter, and a power meter, without the need of obtaining the transmission spectrum of the structure; thus, a really low-cost system and real-time results are achieved. Experimental results show that it is possible to detect very low refractive index variations, achieving a detection limit below 2 x 10(-6) refractive index units using this low-cost measuring technique. (C) 2011 Optical Society of America

引用

页码：2707 / 2709

页数：3

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