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Multiperiodic nanohole array for high precision sensing

Andre-Pierre Blanchard-Dionne and Michel Meunier

Article (2018)

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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 transmission maxima. This setup requires a simple optical setup while achieving increased resolution and accuracy. A resolution of 4.6 × 10−6 refractive index units is achieved, which is comparable 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: 09 Apr 2024 13:50
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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