Control of Resonance Absorption Modes for Broadband Infrared Metamaterial Absorber
| Autor: | Wenxin Li, Wansen Ai, Ya Li, Longjiang Deng, Ruomei Jiang, Ruizhi Sun, Li Zhang, Xiaolong Weng, Peiheng Zhou, Yanning Liu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
lcsh:Applied optics. Photonics
Materials science Physics::Optics 02 engineering and technology Dielectric 01 natural sciences magnetic polariton 010309 optics Standing wave hybrid modes 0103 physical sciences Polariton lcsh:QC350-467 Electrical and Electronic Engineering Absorption (electromagnetic radiation) business.industry Bilayer infrared metamaterial absorber lcsh:TA1501-1820 Resonance Metamaterial 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Resonance absorption standing wave Metamaterial absorber Optoelectronics 0210 nano-technology business lcsh:Optics. Light |
| Zdroj: | IEEE Photonics Journal, Vol 11, Iss 1, Pp 1-10 (2019) |
| ISSN: | 1943-0647 |
| DOI: | 10.1109/jphot.2018.2885222 |
| Popis: | Magnetic polariton resonance, standing wave, and their coupling have provided interesting and exotic characteristics for infrared metamaterial. In this paper, the metal-insulator-metal metamaterial absorbers consisting of either single layer dielectric or bilayer dielectrics are discussed to reveal the geometric and dielectric thin film control of resonance absorption modes. These absorption modes can be independently manipulated by specific geometrical parameters, and thus provide a multi-peak characteristic for the metamaterial absorber. Comparing to the single dielectric structure, a new freedom of modes control is introduced to the bilayer dielectric structure by the addition of low epsilon MgF2, and then results in a quasi-continuous broadband absorption in the range of 5-8 μm. Experimental result further demonstrates the broadband effect, consistent with the numerical simulation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|