Analysis of graphene and sulfide coated surface plasmon resonance biosensors

Priscila Oliveira de Jesus; Vitaly Felix Rodriguez-Esquerre

doi:10.1117/12.2530113

9 September 2019 Analysis of graphene and sulfide coated surface plasmon resonance biosensors

Priscila Oliveira de Jesus, Vitaly Felix Rodriguez-Esquerre

Proceedings Volume 11082, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII; 110822N (2019) https://doi.org/10.1117/12.2530113
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States

Abstract

In this work the sensitivity of graphene and sulfide coated biosensors is analyzed in details by an efficient frequency domain finite element method. The proposed sensors are designed by introducing a thin film sulfide coating over a bimetallic surface plasmon resonance biosensor composed by gold and silver. The sensitivity of the proposed sensors can be highly enhanced by introducing the top thin layers. The influence of several sulfide composites in combination with the graphene layer is tuned and optimized by adjusting their optical and geometrical parameters.

Citation Download Citation

Priscila Oliveira de Jesus and Vitaly Felix Rodriguez-Esquerre "Analysis of graphene and sulfide coated surface plasmon resonance biosensors", Proc. SPIE 11082, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII, 110822N (9 September 2019); https://doi.org/10.1117/12.2530113

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KEYWORDS

Graphene

Silver

Gold

Sensors

Molybdenum

Reflectivity

Surface plasmons

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