Journal
OPTICS EXPRESS
Volume 16, Issue 20, Pages 16058-16063Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.016058
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Funding
- Department of Energy (Basic Energy Sciences) [DE-AC02-07CH11358]
- office of Naval Research [N00014-07-1-D359]
- European Community [213390]
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In this letter, the properties of split-ring resonators (SRRs) loaded with high-Q capacitors and nonlinear varactors are theoretically analyzed and experimentally measured. We demonstrate that the resonance frequency f(m) of the nonlinear SRRs can be tuned by increasing the incident power. fm moves to lower and higher frequencies for the SRR loaded with one varactor and two back-to-back varactors, respectively. For high incident powers, we observe bistable tunable metamaterials and hysteresis effects. Moreover, the coupling between two nonlinear SRRs is also discussed. (c) 2008 Optical Society of America
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