Next Article in Journal
Unsupervised Single-Image Super-Resolution with Multi-Gram Loss
Previous Article in Journal
Machine Learning Interpretability: A Survey on Methods and Metrics
Previous Article in Special Issue
Non-Invasive Blood Glucose Monitoring Using a Curved Goubau Line
Open AccessArticle

Polarization-Independent Tunable Ultra-Wideband Meta-Absorber in Terahertz Regime

Beijing Key Laboratory of Network System Architecture and Convergence, Beijing University of Posts and Telecommunications, Beijing 100876, China
Author to whom correspondence should be addressed.
Electronics 2019, 8(8), 831;
Received: 23 May 2019 / Revised: 16 July 2019 / Accepted: 17 July 2019 / Published: 26 July 2019
(This article belongs to the Special Issue Applications of Electromagnetic Waves)
PDF [4929 KB, uploaded 26 July 2019]
  |     |  


In this paper, we demonstrate an ultra-broadband terahertz bilayer graphene-based absorption structure. It has two stacking graphene layers sandwiched by an Au cylinders array, backed by a metallic ground plane. Au cylinders are used to adjust the input impedance to be closely matched to the free space, enabling an ultra-broadband absorption. The absorption spectrum of the bilayer graphene-based absorption structure with Au cylinder arrays shows a bandwidth of 7.1 THz, with the absorption exceeding 80%. The achieved ultra-wideband THz meta-absorber has high absorption, independence of polarization property, simultaneously, illustrating to be a promising candidate for teraherz broadband absorption application. View Full-Text
Keywords: ultra-wideband; THz absorber; high absorption; polarization independent ultra-wideband; THz absorber; high absorption; polarization independent

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Liu, S.; Deng, L.; Qu, M.; Li, S. Polarization-Independent Tunable Ultra-Wideband Meta-Absorber in Terahertz Regime. Electronics 2019, 8, 831.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Electronics EISSN 2079-9292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top