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PhotonIcs and Electromagnetics Research Symposium,
also known as Progress In Electromagnetics Research Symposium

PIERS Proceedings

Published by The Electromagnetics Academy

Published: 2015-08-28

A Planar Broadband Metamaterial Absorber with the Polarization Insensitive and Omnidirectional Absorption in the Min-infrared Regime

By

Jianliang Xie,

Jianliang Xie

University of Electronic Science and Technology of China, China

Long-Jiang Deng,

Long-Jiang Deng

University of Electronic Science and Technology of China, China

Xiao Long Weng,

Xiao Long Weng

University of Electronic Science and Technology of China, China

Nan Zhang,

Nan Zhang

University of Electronic Science and Technology of China, China

Linbo Zhang,

Linbo Zhang

University of Electronic Science and Technology of China, China

Guorui Zhang,

Guorui Zhang

University of Electronic Since and Technology of China, China

Peiheng Zhou

Peiheng Zhou

University of Electronic Science and Technology of China, China

Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)928-932

Abstract

In this paper, we present the design, fabrication and characterization of a polariza- tion insensitive and omnidirectional broadband planar metamaterial perfect absorber (MPA) in the min-infrared regime. Multi-sized resonators are employed to excite the broadband absorption, and the absorption bandwidth is efficiently broadened compared with the single-sized absorber. Geometric effects on the resonance wavelengths are studied in detail by using the equivalent circuit model. Experiment result shows that greater than 70% absorption is obtained within a waveband of 0.67 µm, which is in reasonable agreement with the simulation. The electromagnetic response of the MPA is theoretically investigated to reveal the intrinsic absorption mechanism. The broadband planar MPA is polarization insensitive and the absorption retains quite high even at large incident angles. The proposed structure holds promise for many applications, such as sensitive detecting, energy harvesting, and thermal modulating.

Citation

Jianliang Xie, Long-Jiang Deng, Xiao Long Weng, Nan Zhang, Linbo Zhang, Guorui Zhang, and Peiheng Zhou, "A Planar Broadband Metamaterial Absorber with the Polarization Insensitive and Omnidirectional Absorption in the Min-infrared Regime," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)928-932

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