期刊
CANADIAN JOURNAL OF PHYSICS
卷 98, 期 5, 页码 484-487出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/cjp-2019-0336
关键词
absorber; resonance; grating; absorption; metamaterials
资金
- Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology [SKL2018KF04]
- National Natural Science Foundation of China [51901001]
- Provincial Natural Science Foundation of Anhui Higher Education Institution of China [KJ2019A0016, KJ2018A0175]
- Anhui Provincial Natural Science Foundation [1908085MF198]
Ultra-narrowband absorbers can be applied in many applications. We propose a mid-infrared ultra-narrowband absorber with TM polarization (magnetic field is parallel to grating grooves) based on dielectric metamaterials in this paper. The simulation results show that the absorption rate larger than 0.99 can be achieved at the resonance wavelength, and the absorption bandwidth is less than 10 nm. The simulated field distribution shows that the ultra-narrowband absorption in this absorber originates from Mie resonance. In addition, the absorber preserves high absorption rates up to 4 degrees which means that our absorber has high directivity. Our results show that the ultra-narrowband absorbers can be applied as a thermal emitter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据