Enhanced gold film-coupled graphene-based plasmonic nanosensor

Rana Nicolas; T. Maurer; G. Lévêque; P. Subramanian; J. Proust; J. Béal; S. Schuermans; J.-P. Vilcot; Z. Herro; M. Kazan; J. Plain; R. Boukherroub; A. Akjouj; B. Djafari-Rouhani; P.-M. Adam; S. Szunerits

doi:10.1117/12.2025237

11 September 2013 Enhanced gold film-coupled graphene-based plasmonic nanosensor

Rana Nicolas, T. Maurer, G. Lévêque, P. Subramanian, J. Proust, J. Béal, S. Schuermans, J.-P. Vilcot, Z. Herro, M. Kazan, J. Plain, R. Boukherroub, A. Akjouj, B. Djafari-Rouhani, P.-M. Adam, S. Szunerits

Author Affiliations +

Proceedings Volume 8809, Plasmonics: Metallic Nanostructures and Their Optical Properties XI; 88090R (2013) https://doi.org/10.1117/12.2025237
Event: SPIE NanoScience + Engineering, 2013, San Diego, California, United States

Abstract

In this work, a trilayer graphene is used as a thin non dielectric spacer with a high index of refraction, between Au film and Au NPs. Encouraged by the sharpness of the localized surface plasmon resonance LSPR induced by this system, we performed sensitivity measurements to refractive index change in the surrounding medium of the sensor. The presence of graphene led to both higher sensitivity and sharper full width at half maximum FWHM and thus higher figure of merit FOM (2.8) compared to the system without graphene (2.1).

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Rana Nicolas, T. Maurer, G. Lévêque, P. Subramanian, J. Proust, J. Béal, S. Schuermans, J.-P. Vilcot, Z. Herro, M. Kazan, J. Plain, R. Boukherroub, A. Akjouj, B. Djafari-Rouhani, P.-M. Adam, and S. Szunerits "Enhanced gold film-coupled graphene-based plasmonic nanosensor", Proc. SPIE 8809, Plasmonics: Metallic Nanostructures and Their Optical Properties XI, 88090R (11 September 2013); https://doi.org/10.1117/12.2025237

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