Open AccessTailored resonator coupling for modifying the terahertz metamaterial response
Author(s) -
Dibakar Roy Chowdhury,
Ranjan Singh,
Matthew T. Reiten,
Jiangfeng Zhou,
Antoinette J. Taylor,
John F. O’Hara
Publication year - 2011
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.19.010679
Subject(s) - metamaterial , split ring resonator , terahertz radiation , resonator , coupling (piping) , optics , capacitive coupling , coupling coefficient of resonators , inductive coupling , materials science , metamaterial absorber , optoelectronics , terahertz spectroscopy and technology , capacitive sensing , physics , tunable metamaterials , computer science , voltage , quantum mechanics , metallurgy , operating system
We experimentally and numerically study the nature of coupling between laterally paired terahertz metamaterial split-ring resonators. Coupling is shown to modify the inductive-capacitive (LC) resonances resulting in either red or blue-shifting. Results indicate that tuning of the electric and magnetic coupling parameters may be accomplished not by changing the orientation or density of SRRs, but by a design modification at the unit cell level. These experiments illustrate additional degrees of freedom in tuning the electromagnetic response, which offers a path to more robust metamaterial designs.