| Autor: |
Yu-Sheng Lin, Xinyi Zhang, Yingfeng Ding, Jie Dai, Weikai Huang, Rongpeng Fang, Zhuoyu Zeng |
| Předmět: |
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| Zdroj: |
Web of Science |
| Popis: |
We propose two designs of tunable metasurface absorber (TMA), which are TMA with single- and dual-layer metasurfaces. They are denoted as TMA-I and TMA-2 for TMA with single- and dual-layer metasurfaces, respectively. Two devices show ultra-broadband and polarization-insensitive characteristics. The tuning ranges are 145 nm and 95 nm by tailoring the radius of metasurface disk for two designs. TMA-I exhibits the resonant bandwidth of 80 nm while TMA-2 can be improved 4-fold which exhibits the resonant bandwidth of 20 nm. By changing the gap between two metasurface layers of TMA-2. The tuning range of resonance could be spanned the whole visible wavelength range. It opens an avenue to a possibility for high-efficiency wavelength-selective devices in visible spectral range. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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