Enhance the Excitation Efficiency of Spoof Surface Plasmons through Fabry–Pérot Resonance
- Resource Type
- Conference
- Authors
- Huang, Tie-Jun; Yin, Li-Zheng; Liu, Jiang-Yu; Han, Feng-Yuan; Tan, Yunhua; Liu, Pu-Kun
- Source
- 2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Microwave and Millimeter Wave Technology (ICMMT), 2019 International Conference on. :1-3 May, 2019
- Subject
- Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
- Language
An efficiency way to enhance the excitation efficiency of spoof surface plasmons (SSP) is proposed and demonstrated in this work. Under the rigorous theoretical deduction, it is found that almost perfect transmission through transmissive metallic grating can be realized when the Fabry–Pérot (FP) resonance occurs. A significantly high conversion efficiency 92% between incident waves and surface waves is achieved by transmissive metallic gratings under the situation of FP resonances. Further studies show that tuning the direction of excited SSP and compressing the thickness of coupler are also realized by tilting the incident waves and filling high-index dielectric, respectively. This work may provide technical supports for plasmonic applications.