Open AccessLow-loss flexible bilayer metamaterials in THz regime
Author(s) -
Jeong Min Woo,
Dongju Kim,
Sajid Hussain,
JaeHyung Jang
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.002289
Subject(s) - terahertz radiation , materials science , bilayer , optics , transmittance , metamaterial , insertion loss , optoelectronics , reflection (computer programming) , substrate (aquarium) , oceanography , genetics , physics , membrane , computer science , biology , programming language , geology
Low insertion-loss single-layer and bilayer metamaterial filters in terahertz (THz) frequency regime were demonstrated on top of low cost flexible Scotch tape by utilizing pattern transfer method. The transmittance of the flexible 51-μm-thick Scotch tape was found out to be higher than 0.85 in the range of 0.2 to 3 THz, which is excellent for the substrate materials for THz applications. Free standing filters exhibited record low insertion loss of 0.6 dB and band rejection ratio as high as 30 dB. The resonance reflection characteristics of the bilayer filters were maintained when they were attached on top of curved PET bottle or metallic surfaces, providing promising application in THz identifications.