Open AccessCharacterization of a split-ring-resonator-loaded transmission line at terahertz frequencies
Author(s) -
Robert Smith,
Vahid Shiran,
Walid Gomaa,
T.E. Darcie
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.432192
Subject(s) - resonator , terahertz radiation , materials science , optics , transmission line , optoelectronics , split ring resonator , coplanar waveguide , terahertz spectroscopy and technology , physics , telecommunications , microwave , quantum mechanics , computer science
Recently we demonstrated the fabrication and testing of a variety of RF-engineered passive transmission-line-based components designed for operation at terahertz frequencies and fabricated on thin (1 μm) silicon-nitride membranes. In this work we measure the transmission response of a coplanar-strip transmission line loaded with split-ring resonators up to 2.5 THz. We observe three dominate modes within the measured frequency range; the predicted LC resonator mode at 0.510 THz, a higher-order LC resonator mode at 1.03 THz, and a higher-order dipole mode at 1.85 THz. The LC resonator mode is investigated using a modified version of the standard lumped element model which incorporates the transmission line between adjacent meta-atoms using ABCD matrices.