Magneto-plasmonic “switch” device for magnetic field detection-Reference-Cited by-同舟云学术

Magneto-plasmonic “switch” device for magnetic field detection

Published:2024-06-06 Issue:19 Volume:13 Page:3689-3698
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Bsawmaii Laure¹^ORCID,Giraud Pascal¹,El Haber Gerges¹,Halagacka Lukas²³,Chatelon Jean-Pierre¹,Jamon Damien¹,Jourlin Yves¹,Royer François¹

Affiliation:

1. 131842 Université Jean Monnet Saint Etienne, CNRS, Institut d’optique Graduate School, Laboratoire Hubert Curien UMR 5516 , F-42023 Saint-Etienne , France

2. Faculty of Materials Science and Technology , VSB – Technical University of Ostrava , 17 Listopadu 15, 708 00 Ostrava-Poruba , Czech Republic

3. Nanotechnology Centre, CEET , VSB – Technical University of Ostrava , 17. Listopadu 15, 70800 Ostrava , Czech Republic

Abstract

Abstract This paper introduces a novel class of low-loss and cost-effective optical planar structures tailored for magnetic detection applications. These structures represent unconventional magneto-plasmonic devices specifically optimized for an ‘optical switch’ configuration. The structure consists of a 1D deep sinusoidal gold grating covered by a thin cobalt layer. In this unique arrangement, the excited plasmon induces a high-contrast switching phenomenon between the reflected free space intensity of specular (0th) and −1st diffracted orders, sensitive to any transverse magnetic fields applied to the cobalt layer. The use of these two distinct diffracted orders induces differential measurements, effectively mitigating common drift and perturbations. This innovative approach results in an enhanced detection sensitivity, showcasing the potential of these structures for advanced magnetic field sensing applications.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2024-0136/pdf

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