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Multiperiodic nanohole array for high precision sensing

Andre-Pierre Blanchard-Dionne and Michel Meunier

Article (2018)

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Cite this document: Blanchard-Dionne, A.-P. & Meunier, M. (2018). Multiperiodic nanohole array for high precision sensing. Nanophotonics, 8(2), p. 325-329. doi:10.1515/nanoph-2018-0108
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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

Open Access document in PolyPublie
Subjects: 3100 Physique > 3100 Physique
3100 Physique > 3110 Optique (voir aussi Dispositifs photoniques, 2505)
Department: Département de génie physique
Research Center: Autre
Date Deposited: 12 May 2021 11:34
Last Modified: 13 May 2021 01:20
PolyPublie URL: https://publications.polymtl.ca/4794/
Document issued by the official publisher
Journal Title: Nanophotonics (vol. 8, no. 2)
Publisher: De Gruyter
Official URL: https://doi.org/10.1515/nanoph-2018-0108


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