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In this work, fabrication and characterization of a negative-index metamaterial consisting of free-standing wire-pair composite structures is presented for application at THz frequencies. Complex index of refraction data is derived from amplitude- and phase-sensitive THz time-domain transmission and reflection measurements and compared with theoretical results. A first direct measurement of a negative...
A new type of dielectric THz waveguide, which evolved from a recent approach from the held of integrated optics, is presented with theoretical and experimental results. Due to the continuity of electric flux density at a dielectric interface, the THz wave is predominantly confined in the virtually lossless low-index air core of a high-index dielectric waveguide. Attenuation, dispersion, field enhancement...
Recent developments for the label-free analysis of genetic material using THz systems are presented. Following a proof-of-principle initial approach, high-sensitivity integrated THz sensing systems reaching femtomol detection sensitivity and single base mutation capabilities are reviewed.
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