Graded-lattice AAO photonic crystal heterostructure for high Q refractive index sensing

被引：41

作者：

Lee, Jungmin ^{[1
]}

Bae, Kyuyoung ^{[1
]}

Kang, Gumin ^{[1
]}

Choi, Minjung ^{[1
]}

Baek, Seunghwa ^{[1
]}

Yoo, Do-sik ^{[2
]}

Lee, Chang-Won ^{[3
]}

Kim, Kyoungsik ^{[1
]}

机构：

[1] Yonsei Univ, Sch Mech Engn, 50 Yonsei Ro, Seoul 120749, South Korea

[2] Hongik Univ, Sch Elect & Elect Engn, Seoul 121791, South Korea

[3] Samsung Adv Inst Technol, Suwon, South Korea

来源：

RSC ADVANCES | 2015年 / 5卷 / 88期

基金：

新加坡国家研究基金会;

关键词：

ANODIC ALUMINUM-OXIDE; POROUS SILICON; RUGATE FILTERS; ANODIZATION; NANOSTRUCTURES; ENHANCEMENT; FABRICATION;

D O I：

10.1039/c5ra15890g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a low-cost and versatile optical sensor based on anodic aluminum oxide (AAO) graded-lattice photonic crystal heterostructure (PCH) template controlled by voltage pulse and electrolyte temperature. Designed PCH shows high Q factor up to similar to 55 from the first order side band peak in the reflectance spectra and vivid color change due to infiltrated analytes. Highly linear refractive index sensitivity "d lambda/dn" up to 441 nm RIU-1 could be obtained independent of analytes' polarities. Superb perceptual colorimetric sensing performance was attained up to 0.01 according to CIELab tristimulus mapping analysis.

引用

页码：71770 / 71777

页数：8

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