Tunable terahertz metamaterial using electrostatically electric split-ring resonator

• DOI: 10.1016/j.rinp.2020.103638
• Publication Date: 2020-11-23T07:12:08Z
• Authors: Tao Xu; Ruijia Xu; Yu-Sheng Lin
• Keywords: Split-ring resonator; Polarizer; Transverse mode

A design of electrostatically tunable metamaterial is proposed in the terahertz (THz) frequency range using electric split-ring resonators (eSRR), which shows polarization-dependent and switching characteristics. The eSRR composed anchored rectangular a movable middle I-shaped metal bar. By exploiting electrostatic force to change gap within distance bar, electromagnetic characteristics can be controlled. response single-resonance transverse (TE) mode keeps as quite stable. In magnetic (TM) mode, dual- triple-resonance. Such able used lots applications, such polarizers, actively filters, frequency-selective detectors, high-efficiency sensors, multi-functional switches THz optoelectronic devices.