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Multiperiodic nanohole array for high precision sensing

Andre-Pierre Blanchard-Dionne, Michel Meunier

Article (2018)

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Abstract

In this article, we present a multiperiodic nanohole array structure for improved sensing. The structure consists a series of rows of nanoholes, each having a different period in an ascending order. A monochromatic source illuminates the structure, and a resonance condition is met for the row having a momentum matching Bloch wave, which leads to extraordinary optical transmission. With this new plasmonic structure, the sensing signal can be retrieved using the spatial position of the transmissionmaxima. This setup requires a simple optical setup whileachieving increased resolution and accuracy. A resolutionof 4.6 × 10−6 refractive index units is achieved, which iscomparable to surface plasmon resonance system based on the Kretchmann configuration.

Uncontrolled Keywords

nanomaterials; optical sensors; subwavelength structure; surface waves

Subjects: 3100 Physics > 3100 Physics
3100 Physics > 3110 Optics (see also Photon devices, 2505)
Department: Department of Engineering Physics
Research Center: Other
PolyPublie URL: https://publications.polymtl.ca/4794/
Journal Title: Nanophotonics (vol. 8, no. 2)
Publisher: De Gruyter
DOI: 10.1515/nanoph-2018-0108
Official URL: https://doi.org/10.1515/nanoph-2018-0108
Date Deposited: 12 May 2021 11:34
Last Modified: 11 Nov 2022 13:29
Cite in APA 7: Blanchard-Dionne, A.-P., & Meunier, M. (2018). Multiperiodic nanohole array for high precision sensing. Nanophotonics, 8(2), 325-329. https://doi.org/10.1515/nanoph-2018-0108

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