Specularly-Reflected Wave Guidance of Terahertz Plasmonic Metamaterial Based on the Metal-Wire-Woven Hole Arrays: Functional Design and Application of Transmission Spectral Dips

Borwen You, Ryuji Iwasa, Po Lun Chen, Tun Yao Hung, Chih Feng Huang, Chin Ping Yu, Hsin Ying Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Terahertz (THz) plasmonic metamaterial, based on a metal-wire-woven hole array (MWW-HA), is investigated for the distinct power depletion in the transmittance spectrum of 0.1–2 THz, including the reflected waves from metal holes and woven metal wires. Woven metal wires have four orders of power depletion, which perform sharp dips in a transmittance spectrum. However, only the first-order dip at the metal–hole–reflection band dominates specular reflection with a phase retardation of approximately π. The optical path length and metal surface conductivity are modified to study MWW-HA specular reflection. This experimental modification shows that the first order of MWW-HA power depletion is sustainable and sensitively correlated with a bending angle of the woven metal wire. Specularly reflected THz waves are successfully presented in hollow-core pipe wave guidance specified from MWW-HA pipe wall reflectivity.

Original languageEnglish
Article number4463
JournalMaterials
Volume16
Issue number12
DOIs
Publication statusPublished - 2023 Jun

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics

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