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The successful engineering of sources and components in the terahertz (THz) regime benefits from good characterization of materials properties. Previous research reports have shown that calculations of material parameters that are valid at radio frequencies are no longer accurate at THz frequencies. A high-quality-factor quasi-optical hemispherical resonator operating between 300 GHz–1 THz has been...
A high-Q quasi-optical resonator is used to experimentally measure metal samples with controlled nano-scale textures at 400 GHz and 650 GHz. The results explore the effect of surface roughness on effective conductivity in the terahertz regime.
We present an experimental study of electromagnetic losses resulting from atmospheric absorption and scattering on terahertz (THz) radiation. A sealed, high-Q quasi-optical resonator system permits the control of the atmospheric water content and allows for measurement of electromagnetic losses.
We present a combined experimental and computational study on effective electrical conductivity at terahertz frequencies. A high-Q quasi-optical resonator is used to experimentally verify the results of a novel EMC/FDTD/MD numerical model.
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