Graphene-Based Terahertz Plasmonic Sensor
| Autor: | Gleida Tayanna Conde de Sousa, Wendria Silva, Karlo Q. da Costa, Rodrigo R. Paiva |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Electromagnetic field
Materials science Condensed Matter::Other business.industry Graphene Terahertz radiation Physics::Optics 02 engineering and technology Dielectric 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Finite element method 0104 chemical sciences law.invention law Computer Science::Networking and Internet Architecture Optoelectronics Prism 0210 nano-technology business Layer (electronics) Plasmon |
| Zdroj: | 2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC). |
| DOI: | 10.1109/imoc43827.2019.9317578 |
| Popis: | This paper presents a theoretical analysis of a terahertz plasmonic sensor with graphene. The sensor is composed of five layers: prism, SiO 2 , graphene, dielectric sample, and air, where the graphene layer has infinitesimal thickness. The finite element method is used to analyze the electromagnetic response of the sensor. First a sensor in the Otto configuration is considered for model validation and comparison with data available in literature. Then we investigated the reflectivity and electromagnetic field responses of a sensor in the Kretschmann configuration, with and without examples of dielectric samples. The results show some similarities between graphene terahertz and metallic optical sensors. |
| Databáze: | OpenAIRE |
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