Ultrahigh-Q Tunable Terahertz Absorber Based on Bulk Dirac Semimetal with Surface Lattice Resonance

Ultrahigh-Q Tunable Terahertz Absorber Based on Bulk Dirac Semimetal with Surface Lattice Resonance

In this paper, we present an easy-to-implement metamaterial absorber based on bulk Dirac semimetal (BDS). The proposed device not only obtains an ultrahigh quality factor (<i>Q</i>-factor) of 4133 and dynamic adjustability at high absorption, but also exhibits an excellent sensing perfor...

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Bibliographic Details
Main Authors: Zhiyong Wang, Yanghong Ou, Shiyu Wang, Yanzi Meng, Zi Wang, Xiang Zhai, Lingling Wang, Shengxuan Xia
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Photonics
Subjects:
bulk Dirac semimetal
metamaterials
narrowband absorption
refractive index sensing
Online Access:https://www.mdpi.com/2304-6732/9/1/22

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