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We present the first experimental realization of a terahertz (THz) waveguide that exhibits a negative effective index of refraction. To demonstrate this, we designed fabricated and characterized a linear array of three-dimensional structures that consist of split ring resonators and posts. THz radiation is launched and guided in the form of surface plasmon polaritons (SPPs) along the 3D metallic structures...
We demonstrate a simple and cost-effective method for fabricating silver-nanoparticle metamaterial structures on a flexible substrate based on inkjet printing. Specifically, we used inkjet printing with an ordinary printer to obtain an array of split-ring resonators (SRRs) on a sheet of paper. We designed the SRR array to exhibit a resonance in the THz region, which we observed through THz time-domain...
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