Investigation of electromagnetic response of terahertz metamaterial by using split-disk resonator

•SDR exhibits polarization-dependent and angle-dependent characterizations.•SDR can realize THz filter and THz switch on single chip design.•Large transmission shift (0.60 THz) of resonance at TE mode.•SDR exhibits effective resistance to the variation of environmental refraction index. A terahertz...

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Published inOptics and laser technology Vol. 111; pp. 509 - 514
Main Authors Lin, Yu-Sheng, Yan, Kanghong, Yao, Dongyuan, Yu, Yangbin
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.04.2019
Elsevier BV
Subjects
Aluminum
Electromagnetics
Infrared imaging systems
Metamaterial
Metamaterials
Microwaves
Polarization-dependent
Reconfiguration
Resonators
Semiconductors
Silicon substrates
Terahertz frequencies
THz resonator
THz resonator
Metamaterial
Polarization-dependent
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Summary:•SDR exhibits polarization-dependent and angle-dependent characterizations.•SDR can realize THz filter and THz switch on single chip design.•Large transmission shift (0.60 THz) of resonance at TE mode.•SDR exhibits effective resistance to the variation of environmental refraction index. A terahertz (THz) metamaterial split-disk resonator (SDR) is proposed to possess multifunctionality. This SDR structure is composed of Al disk with a split on Si substrate. It exhibits a large resonance shift in transmission spectrum under reconfiguration of geometrical dimensions. The resonance shift is 0.60 THz. The distinct characteristics at TE and TM modes are investigated and discussed. Such SDR design provides a high-efficiency resonator in THz wave applications and can realize polarization-dependent for THz switch. Furthermore, the design of SDR can resist the variation of ambient refraction index, which provides the capability for the use in various environments.
ISSN:0030-3992
1879-2545
DOI:10.1016/j.optlastec.2018.10.040