Work

Polarization Tunable Terahertz Metamaterial Absorber

Year: 2015

Type: article

Abstract: Metamaterial-based perfect absorbers have attracted considerable attention due to their potential for practical applications. The existing absorbers, however, are mostly polarization insensitive or only sensitive to one direction, which is inapplicable in some areas. Polarization tunable or high absorption in two orthogonal directions is very useful and necessary. Herein, we present a polarization tunable absorber formed by an asymmetric patch and a dielectric layer on top of a metallic board. With this structure, the frequency of the absorber can be tuned by merely changing the polarization of the incident. The tunable mechanism originates from the different length of the patch along the two orthogonal directions. The concept is rather general and applicable to various absorbers, as long as the asymmetric design is valid. The absorber can find practical applications in manipulation of the polarization of the light and detecting waves with specific polarization.

Source: IEEE photonics journal

DOI: 10.1109/jphot.2015.2448718

Authors: Ben-Xin Wang, Gui-Zhen Wang, Xiang Zhai, Ling-Ling Wang

Institutions: Jiangnan University, Hunan University, Hunan Traditional Chinese Medical College

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,075

Funders: National Natural Science Foundation of China, Specialized Research Fund for the Doctoral Program of Higher Education of China