Controllable Fano-like Resonance in Terahertz Planar Meta-Rotamers
| Autor: | Joong Wook Lee, Min-Gyu Bae, Subin Jo |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Technology
QH301-705.5 Terahertz radiation QC1-999 Physics::Optics Fano plane terahertz spectroscopy Planar modulators General Materials Science Biology (General) QD1-999 Instrumentation Fluid Flow and Transfer Processes Physics Electromagnetic Phenomena business.industry Process Chemistry and Technology General Engineering Resonance Metamaterial Engineering (General). Civil engineering (General) Computer Science Applications Terahertz spectroscopy and technology Chemistry Coupling (physics) metamaterials Optoelectronics TA1-2040 active optics business |
| Zdroj: | Applied Sciences, Vol 11, Iss 9796, p 9796 (2021) Applied Sciences Volume 11 Issue 21 |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11219796 |
| Popis: | Meta-molecules composed of meta-atoms exhibit various electromagnetic phenomena owing to the interaction among the resonance modes of the meta-atoms. In this study, we numerically investigated Fano-like-resonant planar metamaterials composed of meta-molecules at terahertz (THz) frequencies. We present meta-rotamers based only on the difference in the spatial position of their component meta-atoms (C- and Y-shapes) that can be interconverted by rotations and have tunable Fano-like resonance. This is because of the cooperative effects determined by the spatial coupling conditions of the nodes and antinodes of electric-dipole and inductive–capacitive (LC) resonances of the meta-atoms. The findings of this study provide potential options for exploring novel THz devices and for engineering high-level functionalities in metamaterial-based devices. |
| Databáze: | OpenAIRE |
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