This study introduces a rake‐shaped graphene nanostructure and investigates multiple Fano resonances and its sensing application by using finite‐difference time‐domain (FDTD) simulations method. Here, the dependence of structural parameters, Fermi levels, and the incidence angle and polarization of the input wave on optical transmission spectra is aimed at investigating. The results show that tunable multiple Fano resonances can be achieved in the rake‐shaped graphene nanostructure. In addition, the sensing characteristics based on the multi‐Fano resonance in rake‐shaped graphene nanostructure are also studied in the work. The research results show that the sensing sensitivity and figure of merit (FOM) can reach up to 2.1 THz/RIU and 3.3/RIU as a result of enhanced interaction between environmental substances and optical waves. These findings deepen the understanding of plasmonic resonances in graphene‐based metasurfaces and emphasize their significant potential in sensing applications.

中文翻译：

---

在耙形石墨烯纳米结构中具有出色传感能力的多重声共振


本研究介绍了一种耙形石墨烯纳米结构，并使用有限差分时域 （FDTD） 仿真方法研究了多个 Fano 共振及其传感应用。在这里，结构参数、费米能级以及输入波的入射角和偏振对光传输光谱的依赖性旨在研究。结果表明，在耙形石墨烯纳米结构中可以实现可调的多个 Fano 谐振。此外，该工作还研究了基于耙形石墨烯纳米结构中多-Fano共振的传感特性。研究结果表明，由于环境物质与光波之间的相互作用增强，传感灵敏度和品质因数 （FOM） 可以达到 2.1 THz/RIU 和 3.3/RIU。这些发现加深了对石墨烯基超表面等离激元共振的理解，并强调了它们在传感应用中的巨大潜力。