Tunable terahertz fishnet metamaterial
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Original language | English |
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Article number | 151903 |
Journal / Publication | Applied Physics Letters |
Volume | 102 |
Issue number | 15 |
Publication status | Published - 15 Apr 2013 |
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DOI | DOI |
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-84877133969&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(07460685-03aa-483b-b79b-cef5a89d2d32).html |
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.
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Citation Format(s)
Tunable terahertz fishnet metamaterial. / Chang, Cheng-Ling; Wang, Wei-Chih; Lin, Hong-Ren et al.
In: Applied Physics Letters, Vol. 102, No. 15, 151903, 15.04.2013.
In: Applied Physics Letters, Vol. 102, No. 15, 151903, 15.04.2013.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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