Frequency tunable terahertz metamaterials using broadside coupled split-ring resonators

E. Ekmekci, AC Strikwerda, K. Fan, G. Keiser, X. Zhang, G. Turhan-Sayan, RD Averitt

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We present frequency tunable metamaterial designs at terahertz (THz) frequencies using broadside coupled split-ring resonator (BC-SRR) arrays. Frequency tuning, arising from changes in near-field coupling, is obtained by in-plane displacement of the two SRR layers. For electrical excitation, the resonance frequency continuously redshifts as a function of displacement. The maximum frequency shift occurs for vertical displacement of half a unit cell, resulting in a shift of 663 GHz (51% of f(0)). We discuss the difference in the BC-SRR response for electrical excitation in comparison to magnetic excitation in terms of hybridization arising from inductive and capacitive coupling.
Original languageEnglish
JournalPysical Review B
Volume83
Issue number19
Pages (from-to)193103
Number of pages1
ISSN0163-1829
DOIs
Publication statusPublished - 2011
Externally publishedYes

Cite this

Ekmekci, E., Strikwerda, AC., Fan, K., Keiser, G., Zhang, X., Turhan-Sayan, G., & Averitt, RD. (2011). Frequency tunable terahertz metamaterials using broadside coupled split-ring resonators. Pysical Review B, 83(19), 193103. https://doi.org/10.1103/PhysRevB.83.193103