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Proceedings Paper

Enhancement in sensitivity of guided-wave surface plasmon resonance sensor using graphene
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Paper Abstract

A guided-wave surface plasmon resonance based sensor using graphene layer for detect the biomolecules has been analyzed. The use of waveguide layer between the gold film and graphene significantly improves the penetration depth and increases the sensitivity, then graphene layer is used to enhance the adsorption of the biomolecules. The thickness and materials of waveguide layer along with the number of graphene layer have been optimized to achieve the best performance of the sensor in terms of sensitivity. The highest sensitivity with 228.8°/RIU is obtained for visible wavelength with optimized thickness of gold and waveguide layer as 45nm and 10nm respectively while the materials of waveguide layer is chosen as zinc oxide and the optimum number of graphene layers is 2.We believe that this sensor could find potential applications in biological detection.

Paper Details

Date Published: 12 March 2020
PDF: 8 pages
Proc. SPIE 11440, 2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices, 1144002 (12 March 2020); doi: 10.1117/12.2539020
Show Author Affiliations
Chong Yue, Tianjin Univ. (China)
Yaopu Lang, Tianjin Univ. (China)
Xinglin Zhou, Wuhan Univ. of Science and Technology (China)
Qinggang Liu, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 11440:
2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices
Baojun Li; Xingjun Wang; Ya Sha Yi, Editor(s)

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