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

Lee, Jungmin; Bae, Kyuyoung; Kang, Gumin; Choi, Minjung; Baek, Seunghwa; Yoo, Do-sik; Lee, Chang-Won; Kim, Kyoungsik

doi:10.1039/c5ra15890g

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

Lee, Jungmin;
Bae, Kyuyoung;
Kang, Gumin;
Choi, Minjung;
Baek, Seunghwa;
... Yoo, Do-sik;
외 2명

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64

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43

초록

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.

키워드

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

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

저자: Lee, Jungmin; Bae, Kyuyoung; Kang, Gumin; Choi, Minjung; Baek, Seunghwa; Yoo, Do-sik; Lee, Chang-Won; Kim, Kyoungsik

DOI: 10.1039/c5ra15890g

발행일: 2015

유형: Article

저널명: RSC Advances

권: 5

호: 88

페이지: 71770 ~ 71777

언어: ENG

출판사: ROYAL SOC CHEMISTRY

발행국가: 영국

분량: 8 페이지

ISSN: E 2046-2069
P 2046-2069