研究目的
To numerically and experimentally investigate a metamaterial geometry capable of exhibiting dual-band electromagnetic induced transparency (EIT) effect in terahertz frequency regime.
研究成果
The study successfully demonstrates a metamaterial structure capable of exhibiting dual-band EIT effect in the terahertz regime, with the effect being modulable by changing the distance between the CW and C resonators. This finding has potential applications in the development of multi-band slow light devices, modulators, and sensors.
研究不足
The study is limited to the terahertz frequency regime and the specific geometry of the metamaterial structure. The effect of varying distances between the CW and C resonators on the dual-band EIT effect is explored, but other potential modulating factors are not investigated.
1：Experimental Design and Method Selection:
The study employs numerical simulation and experimental fabrication to investigate the dual-band EIT effect in a metamaterial structure comprising a cut-wire (CW) and two asymmetric C resonators.
2：Sample Selection and Data Sources:
The samples were fabricated on a milky quartz substrate using electron beam lithography.
3：List of Experimental Equipment and Materials:
Electron beam lithography for fabrication, terahertz toptica system (Terahertz frequency domain spectroscopy) for measurements.
4：Experimental Procedures and Operational Workflow:
Fabrication of the metamaterial structure on a quartz substrate, followed by transmission measurements in a dry nitrogen atmosphere.
5：Data Analysis Methods:
Numerical simulation using CST Microwave Studio's frequency domain solver to analyze transmission characteristics.
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