Cited by 115Photonic Crystals and ApplicationsPlasmonic and Surface Plasmon ResearchMetamaterials and Metasurfaces Applications

All-Dielectric Surface-Enhanced Infrared Absorption-Based Gas Sensor Using Guided Resonance

Chang, Yuhua, Hasan, Dihan, Dong, Bowei, Wei, Jingxuan, Ma, Yiming, Zhou, Guangya, Ang, Kah Wee, Lee, Chengkuo·2018·ACS Applied Materials & Interfaces

Abstract

The surface-enhanced infrared absorption (SEIRA) technique has been focusing on the metallic resonator structures for decades, exploring different approaches to enhance sensitivity. Although the high enhancement is achieved, the dissipative loss and strong heating are the intrinsic drawbacks of metals. Recently, the dielectric platform has emerged as a promising alternative. In this work, we report a guided resonance-based all-dielectric photonic crystal slab as the platform for SEIRA. The guided resonance-induced enhancement in the effective path length and electric field, together with gas enrichment polymer coating, leads to a detection limit of 20 ppm in carbon dioxide (CO 2 ) sensing. This work explores the feasibility to apply low loss all-dielectric structures as a surface enhancement method in the transmission mode.

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Crossref · 10.1021/acsami.8b16623

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49 of 49 references verified0 citation errors · 0 not checkable

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  • Molecular enrichment strategies bring additional working requirements for specific molecules, impeding global molecular recognition.

    “The molecular enrichment strategies, including functionalized chemical bonding17,18, chemical reaction19,20, physical adsorption21–23, optical trapping24 as well as passive trapping by undercut structure25–28 bring in the additional working requirements (e.g., chemical stimuli, temperature, pressure, pump power, etc.) for specific molecules, impeding the system for global molecular recognition.”
  • Three approaches to optimize nanoantenna sensing by increasing coupling efficiency μ are hotspot release, molecule enrichment, and squeezing adjacent nanoantennas into a nanogap.

    “Figure 2b summarizes three approaches to optimize nanoantenna sensing by increasing μ. Hotspots release is proposed to increase accessible sensing areas for analytes, which are usually blocked by the substrate, to further enhance the coupling efficiency25–28.”

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Authors
Chang, Y., Hasan, D., Dong, B., Wei, J., Ma, Y., Zhou, G., Ang, K. W., & Lee, C.
Affiliations
National University of Singapore (SG)
Corresponding author
Lee, Chengkuo
Venue
ACS Applied Materials & Interfaces
Published
2018-10-17
Volume
10
Issue
44
Pages
38272-38279
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2896633530
Cited by
115
References
49
Citations by year
2026: 4 · 2025: 14 · 2024: 9 · 2023: 14 · 2022: 21 · 2021: 22 · 2020: 17 · 2019: 12 · 2018: 2
FWCI
6.12
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Applied Materials & Interfaces (publishedVersion)
  • PubMed (publishedVersion)
  • National University of Singapore (submittedVersion)
Funders
National Research Foundation Singapore (R-263-000-C24-281, R-263-501-012-133, NRF-CRP15-2015-02)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Photonic Crystals and Applications
  • Physical Sciences › Engineering › Biomedical Engineering › Plasmonic and Surface Plasmon Research
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Metamaterials and Metasurfaces Applications
Keywords
surface-enhanced infrared absorption, all-dielectric resonators, guided-mode resonance, photonic crystal slabs, gas sensors, carbon dioxide detection, polymer coatings, transmission mode, electric field enhancement, effective path length

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