ArticleNanophotonics (Berlin, Germany)2022
Rayleigh anomaly-enabled mode hybridization in gold nanohole arrays by scalable colloidal lithography for highly-sensitive biosensing.
Article in Nanophotonics (Berlin, Germany), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- High-Q multimodal guided-surface lattice resonances in index-discontinuous environments.Nature communications · 2026Article
- Evolutionary Diffusion Framework Empowering High-Performance Freeform Terahertz Metasurface Sensing.Sensors (Basel, Switzerland) · 2026Article
- Article
- Harnessing the Power of Plasmonics forACS photonics · 2025Review
- Capillary Wave-Assisted Colloidal Assembly.Langmuir : the ACS journal of surfaces and colloids · 2025Article
- Defect-insensitive cylindrical surface lattice resonance array and its batch replication for enhanced immunoassay.Microsystems & nanoengineering · 2024Article
- A Combined Plasmonic and Electrochemical Aptasensor Based on Gold Nanopit Arrays for the Detection of Human Serum Albumin.Nanomaterials (Basel, Switzerland) · 2023Article
- Large-Area Ordered Palladium Nanostructures by Colloidal Lithography for Hydrogen Sensing.Molecules (Basel, Switzerland) · 2022Article
- Reconfigurable switching between reflecting/absorbing modes in VOScientific reports · 2022Article
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Authors and funding
10 authors.
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Abstract
Plasmonic sensors exhibit tremendous potential to accomplish real-time, label-free, and high-sensitivity biosensing. Gold nanohole array (GNA) is one of the classic plasmonic nanostructures that can be readily fabricated and integrated into microfluidic platforms for a variety of applications. Even though GNA has been widely studied, new phenomena and applications are still emerging continuously expanding its capabilities. In this article, we demonstrated narrow-band high-order resonances enabled by Rayleigh anomaly in the nanohole arrays that are fabricated by scalable colloidal lithography. We fabricated large-area GNAs with different hole diameters, and investigated their transmission characteristics both numerically and experimentally. We showed that mode hybridization between the plasmon mode of the nanoholes and Rayleigh anomaly of the array could give rise to high-quality decapole resonance with a unique nearfield profile. We experimentally achieved a refractive index sensitivity, i.e., RIS up to 407 nm/RIU. More importantly, we introduced a spectrometer-free refractive index sensing based on lens-free smartphone imaging of GNAs with (intensity) sensitivity up to 137%/RIU. Using this platform, we realized the label-free detection of BSA molecules with concentration as low as 10
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