Browsing OSU - Faculty and Staff Publications by Author "Theuer, Michael"
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Adiabatic compression of terahertz waves using metal flares
Theuer, Michael; Beigang, Rene; Grischkowsky, Daniel R. (AIP Publishing, 2010-05-14)We report on the adiabatic free-space coupling of broadband terahertz (THz) radiation through a subwavelength gap using metal flares. Amplitude coupling ratios better than 30% are obtained by optimizing the curvature. This ... -
Flare coupled metal parallel-plate waveguides for high resolution terahertz time-domain spectroscopy
Theuer, Michael; Harsha, S. Sree; Grischkowsky, D. (AIP Publishing, 2010-12-03)We report on a new coupling scheme for high resolution terahertz spectroscopy of microcrystalline films using parallel-plate waveguides. Metal flares are used to couple the terahertz radiation into and out of the waveguide. ...