SPR sensor based on switch effect for very low hydrogen detection

P. Giraud; H. Bruhier; I. Verrier; S. Rajab Pacha; C. Varenne; J. Brunet; Amadou Ndiaye; Y. Jourlin

doi:10.1117/12.2691091

30 November 2023 SPR sensor based on switch effect for very low hydrogen detection

P. Giraud, H. Bruhier, I. Verrier, S. Rajab Pacha, C. Varenne, J. Brunet, Amadou Ndiaye, Y. Jourlin

Author Affiliations +

Proceedings Volume 12796, Functional Material Applications: From Energy to Sensing; 1279604 (2023) https://doi.org/10.1117/12.2691091
Event: SPIE Photonex, 2023, Glasgow, United Kingdom

Abstract

In this work, we present the experimental investigations on a new SPR (Surface Plasmon Resonnace) sensor based on the switch measurement method. The sensor is realized with a deep metallic grating in our case coated with a Pd layer known for its sensitivity to hydrogen1 where the 0th and -1st orders crossed each other at a specific incident angular beam. By achieving a normalized difference between these two orders at this specific working point, any change in dielectric permittivity can be measured when hydrogen interacts with the Pd layer. The sensor developed in this study exhibits promising performance for hydrogen detection and provides proof of concept for the switch measurement method.

Citation Download Citation

P. Giraud, H. Bruhier, I. Verrier, S. Rajab Pacha, C. Varenne, J. Brunet, Amadou Ndiaye, and Y. Jourlin "SPR sensor based on switch effect for very low hydrogen detection", Proc. SPIE 12796, Functional Material Applications: From Energy to Sensing, 1279604 (30 November 2023); https://doi.org/10.1117/12.2691091

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