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

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

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15 Citations (Scopus)

Abstract

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 ∼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 "dλ/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.

Original languageEnglish
Pages (from-to)71770-71777
Number of pages8
JournalRSC Advances
Volume5
Issue number88
DOIs
Publication statusPublished - 2015 Aug 14

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Lee, J., Bae, K., Kang, G., Choi, M., Baek, S., Yoo, D. S., Lee, C. W., & Kim, K. (2015). Graded-lattice AAO photonic crystal heterostructure for high Q refractive index sensing. RSC Advances, 5(88), 71770-71777. https://doi.org/10.1039/c5ra15890g