Abstract:We study experimentally the dynamic tunability and self-induced nonlinearity of split-ring resonators incorporating variable capacitance diodes. We demonstrate that the eigenfrequencies of the resonators can be tuned over a wide frequency range, and significantly, we show that the self-induced nonlinear effects observed in the varactor-loaded split-ring resonator structures can appear at relatively low power levels.
A scattering and absorption identity for metamaterials: Experimental results and comparison with theory Resonant crystal band gap metamaterials in the microwave regime and their exotic amplification of evanescent waves Appl. Phys. Lett. 90, 091912 (2007); 10.1063/1.2709897Effective properties of split-ring resonator metamaterials using measured scattering parameters: Effect of gap orientationThe authors study experimentally both transmission and reflection of microwave radiation from metamaterial superlattices created by layers of periodically arranged wires and split-ring resonators. The authors measure the dependence of the metamaterial resonance on the spatial period of the superlattice and demonstrate resonance broadening and splitting for the binary metamaterial structures.
We study self-collimation and beam splitting in low-refractive-index photonic crystals created within chalcogenide glass. We propose a beam splitter structure that allows direct experimental verification of photonic-crystal effects at optical wavelengths in a straightforward and definitive manner. The beam splitter provides angular separation of 90°using a highly compact spatial footprint, thus delivering direct application in highly integrated photonic devices.
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