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. © 2013 AIP Publishing LLC.
| Original language | English |
|---|---|
| Article number | 151903 |
| Journal | Applied Physics Letters |
| Volume | 102 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 15 Apr 2013 |
Publisher's Copyright Statement
- COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Cheng-Ling Chang, Wei-Chih Wang, Hong-Ren Lin, Feng Ju Hsieh, Yue-Bun Pun, and Chi-Hou Chan , "Tunable terahertz fishnet metamaterial", Appl. Phys. Lett. 102, 151903 (2013) and may be found at https://doi.org/10.1063/1.4801648.