Work

Tunable terahertz fishnet metamaterial

Year: 2013

Type: article

Abstract: This paper describes and demonstrates a terahertz (THz) frequency tunable fishnet metamaterial (TFMM) using an electrically controlled polymer dispersed liquid crystal (PDLC) matrix. In contrast to other PDLC-based devices, the TFMM employs a novel method for encapsulating PDLC using a thin (1.5 μm) polyimide “skin layer” to form a uniform surface for metal electrodes while minimizing the Fabry-Perot effect of the skin layer on the TFMM measurements. The tunability was verified by measuring the frequency shift in the reflection coefficient (0.01 THz), with an observed minimum negative refractive index of −15 at 0.55 THz.

Source: Applied Physics Letters

DOI: 10.1063/1.4801648

Authors: Cheng-Ling Chang, Wei-Chih Wang, Hong-Ren Lin, Feng Ju Hsieh, Yue-Bun Pun, Chi-Hou Chan

Institutions: City University of Hong Kong, University of Washington, Medical Device Innovation Center, National Cheng Kung University

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2040391581

FWCI: 1.454

Cites: 51

Cited by: 48

Related to: 10