石墨烯基SPR传感器的有限元数值分析

2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) Pub Date : 2019-11-10 DOI:10.1109/IMOC43827.2019.9317565

Y. G. Conceição, A. Cruz, P. R. Amaral, P. C. Lopes, T. Rosso, V. Dmitriev, K. Costa

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引用次数: 1

摘要

本文采用COMSOL Multiphysicso软件，对基于石墨烯的表面等离子体共振传感器(SPR传感器)在表面等离子体耦合发射(SPCE)配置下的近似模型进行了数值分析。该模型由多层结构构成:空气/石墨烯/SiO2/石墨烯/棱镜，位于空气辐射赫兹偶极子区域，工作在太赫兹范围。石墨烯层被建模为Kubo公式描述的具有电导率的表面阻抗。利用石墨烯层中化学势的函数对近场和远场进行了参数化分析，验证了石墨烯动态掺杂的发射耦合控制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Numerical Analysis of a Graphene-based SPR Sensor by the Finite Element Method

In this paper we present a numerical analysis of an approximate model of Surface Plasmon Resonance sensor (SPR sensor) in the Surface Plasmon Coupled Emission (SPCE) configuration based on graphene, using a software grounded on the Finite Element Method, COMSOL Multiphysicso. The model is formed by a multilayer structure: Air/Graphene/SiO2/ Graphene/ Prism, being located in the region of Air a radiate hertzian dipole operating in the range of Terahertz. The graphene layers are modeled as surface impedances with conductivity described by the Kubo Formula. Parametric analyzes of the near and far field are carried out in function of the chemical potential applied in the graphene layers, where we verified the emission coupled control by the dynamic doping of the graphene.

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2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)

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