Sensitivity analysis of a photonic crystal structure for index-of-refraction sensing

被引：17

作者：

Levi, Ofer ^{[1
]}

Lee, Meredith M. ^{[1
]}

Zhang, Jingyu ^{[2
]}

Lousse, Virginie ^{[1
]}

Brueck, Steven R. J. ^{[2
]}

Fan, Shanhui ^{[1
]}

Harris, James S. ^{[1
]}

机构：

[1] Stanford Univ, Dept Elect Engn, Stanford, CA 94035 USA

[2] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA

来源：

NANOSCALE IMAGING, SPECTROSCOPY, SENSING, AND ACTUATION FOR BIOMEDICAL APPLICATIONS IV | 2007年 / 6447卷

基金：

美国国家科学基金会;

关键词：

bio-sensor; photonic crystal; guided resonance; near-infrared; index-of-refraction change; microfluidics; vertical-cavity surface-emitting laser (VCSEL);

D O I：

10.1117/12.705670

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We present the optical characterization of an all-dielectric photonic crystal (PC)-based guided resonance filter sensitive to index-of-refraction changes in aqueous solutions. Spectral peak width was found to be 9.8 and 4.4 nm around 816 nm (water media), corresponding to a quality factor Q of 83 and 181, respectively. A spectral shift of peak wavelength with index change of 130 mn/RIU was observed for bulk fluid experiments. Measured peak shift (Delta lambda=0.2nmn) corresponds to a detectable index change Delta n=1.5x 10(-3).

引用

页数：9

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