Abstract

We demonstrate a nonlinear metamaterial that can be switched between low and high transmission by controlling the power level of the incident beam. The origin of this nonlinear response is the superconducting Nb thin film employed in the metamaterial structure. We show that with moderate RF power of about 22 dBm it is possible to quench the superconducting state as a result of extremely strong current densities at the corners of the metamaterial's split-ring resonators. We measure a transmission contrast of 10 dB and a change in group delay of 70 ns between the low and high power states.

Department(s)

Physics

Keywords and Phrases

High transmission; High-power; Incident beams; Metamaterial structures; Non-linear response; Non-Linearity; Power levels; Rf-power; Split-ring resonator; Superconducting state; Group delay; Superconductivity

International Standard Serial Number (ISSN)

0003-6951

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2012 American Institute of Physics (AIP), All rights reserved.

Included in

Physics Commons

Share

 
COinS