Tunable terahertz fishnet metamaterial

Cheng Ling Chang; Wei Chih Wang; Hong Ren Lin; Feng Ju Hsieh; Yue Bun Pun; Chi Hou Chan

doi:10.1063/1.4801648

Tunable terahertz fishnet metamaterial

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

University of Washington
National Cheng Kung University
City University of Hong Kong

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

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 μ m) 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.

Original language	English
Article number	151903
Journal	Applied Physics Letters
Volume	102
Issue number	15
DOIs	https://doi.org/10.1063/1.4801648
State	Published - 15 Apr 2013
Externally published	Yes

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10.1063/1.4801648

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title = "Tunable terahertz fishnet metamaterial",

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 μ m) 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.",

author = "Chang, \{Cheng Ling\} and Wang, \{Wei Chih\} and Lin, \{Hong Ren\} and \{Ju Hsieh\}, Feng and Pun, \{Yue Bun\} and Chan, \{Chi Hou\}",

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doi = "10.1063/1.4801648",

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T1 - Tunable terahertz fishnet metamaterial

AU - Chang, Cheng Ling

AU - Wang, Wei Chih

AU - Lin, Hong Ren

AU - Ju Hsieh, Feng

AU - Pun, Yue Bun

AU - Chan, Chi Hou

PY - 2013/4/15

Y1 - 2013/4/15

N2 - 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 μ m) 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.

AB - 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 μ m) 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.

UR - https://www.scopus.com/pages/publications/84877133969

U2 - 10.1063/1.4801648

DO - 10.1063/1.4801648

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SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 15

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ER -

Tunable terahertz fishnet metamaterial

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