研究目的
Investigating the control of reflection, absorption, and transmission of THz waves using a structure consisting of a graphene sheet sandwiched between two graphene disks.
研究成果
The proposed structure, consisting of a graphene sheet sandwiched between two graphene disks, effectively controls the reflection, absorption, and transmission of THz waves. The design, optimized using a genetic algorithm and verified through simulation, shows promise for applications in modulators, sensors, detectors, and imaging systems. The study demonstrates the potential of graphene-based metamaterials in THz applications.
研究不足
The study focuses on the theoretical design and simulation of the structure, with experimental validation not covered. The practical fabrication challenges and performance under real-world conditions are not discussed.
1：Experimental Design and Method Selection
The proposed metamaterial structures are designed analytically using transmission line theory. The dimensions of the structure and the electrical gating of the graphene are optimized utilizing a genetic algorithm.
2：Sample Selection and Data Sources
The structure is simulated using two different methods: a circuit model based on transmission line theory and commercial full-wave software based on the finite element method.
3：List of Experimental Equipment and Materials
Graphene sheets and disks, polyethylene cyclic olefin copolymer (Topas polymer with np = 1.53) dielectric substrate, gold plate.
4：Experimental Procedures and Operational Workflow
The structure is designed and optimized using a genetic algorithm, then simulated using both a circuit model and full-wave software to verify the results.
5：Data Analysis Methods
The results from the circuit model and full-wave simulations are compared for agreement. The performance of the THz filter and absorber is analyzed based on reflection, absorption, and transmission characteristics.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
