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24 January 2019 A multi-band terahertz metamaterial absorber with novel structure
Wei Wei Meng, Jian Lv, Long Cheng Que, Yun Zhou, Ya Dong Jiang
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Proceedings Volume 10840, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics; 108401F (2019) https://doi.org/10.1117/12.2507451
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China
Abstract
A multi-band terahertz metamaterial absorber (MA) is proposed. The unit cell is formed by windmill-shaped elements in a square ring, a dielectric substrate and a metallic ground plane. The MA unit cell is investigated at normal and oblique incidence for both transverse electric (TE) and transverse magnetic (TM) polarizations. The simulated results show that the MA has three high absorption (greater than 99%) resonance narrow bands. The LC equivalent circuit is employed to analyze the origin of multi-band. The proposed MA is easy to fabricate, what’s more, the proposed MA has high absorption rate and insensitive to polarization, which is favorable for various applications, such as terahertz detecting, imaging, and so on.
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Wei Wei Meng, Jian Lv, Long Cheng Que, Yun Zhou, and Ya Dong Jiang "A multi-band terahertz metamaterial absorber with novel structure", Proc. SPIE 10840, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics, 108401F (24 January 2019); https://doi.org/10.1117/12.2507451
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KEYWORDS
Absorption
Metamaterials
Terahertz metamaterials
Terahertz radiation
Resonators
Absorption filters
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