Authors: Liren Zheng Xiuyun Sun Hua Xu Yuehui Lu YoungPak Lee Joo Yull Rhee Weijie Song
Publish Date: 2015/04/11
Volume: 10, Issue: 6, Pages: 1331-1335
Abstract
In order to investigate the effects of bending strain on electricmagnetic coupling we fabricated and characterized two types of flexible terahertz THz metamaterials on polyethylene naphthalate PEN substrates which had either asymmetric or symmetric configuration The asymmetric flexible THz metamaterials showed a plasmoninduced transparency originating from electricmagnetic coupling The transparency was rather robust and insensitive to strain The symmetric metamaterials demonstrated a transmission dip at a frequency of 135 THz without applied strain due to electric resonance However if strain gradually varied a continuously tunable transmission dip was observed at a frequency of 11 THz which could be ascribed to electricmagnetic coupling induced by symmetry breaking The promising results suggested that the asymmetric and the symmetric flexible THz metamaterials could find potential applications in curved devices and remote stress sensors respectively
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