Abstract
Abstract In this paper, a metasurface base on plasmon-induced transparency (PIT) effect is verified and measured in 8–54 THz. This metasurface achieves six transmission peaks based on PIT resonances at resonance frequencies: 21.24 THz, 27.96 THz, 32.44 THz, 37.62 THz, 46.1 THz, and 51.12 THz, respectively. Phases near zero and positive group delays of transmission peaks result in slow light effects. In the first group experiments, structural parameter W1 decrease from 18 μ m to 14 μ m , transmission peaks move to lower frequencies and amplitudes enhance. In the second group experiments, structural parameter W2 also reduce, similar resonance behaviors obtain. This proposed PIT-based metasurface demonstrates the potential for applications in sensing, optical modulation, and slow-light devices.
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