Controllable Fano-like Resonance in Terahertz Planar Meta-Rotamers

Applied Sciences

卷:11

Subin Jo¹  Min-Gyu Bae¹  Joong-Wook Lee¹ 

[1] Department of Physics and Optoelectronics Convergence Research Center, Chonnam National University, Gwangju 61186, Korea;

关键词: terahertz spectroscopy;    metamaterials;    modulators;    active optics;   

DOI  :  10.3390/app11219796

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown