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Terahertz response of microfluidic-jetted three-dimensional flexible metamaterials

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Abstract

We demonstrate the fabrication and characterization of three-dimensional (3D) metamaterials in the terahertz (THz) range using the microfluidic-jetted technique. This technique has proven a convenient technique to fabricate metamaterial structures at the micrometer scale. The metamaterials are fabricated using dodecanethiol functionalized gold nanoparticles on flexible polyimide substrates. The metamaterials consist of alternate layers of single split-ring resonator and microstrip arrays that are stacked to form a 3D metamaterial medium. The fabricated metamaterials, with lattice sizes of 180μm, are characterized using THz time-domain spectroscopy within 0.1 to 2THz in the transmission mode. Numerical simulation is performed to calculate the effective metamaterials parameter.

© 2010 Optical Society of America

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