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Flare coupled metal parallel-plate waveguides for high resolution terahertz time-domain spectroscopy
(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. ...
Highly sensitive terahertz measurement of layer thickness using a two-cylinder waveguide sensor
(AIP Publishing, 2010-08-17)
We report on the layer thickness determination on dielectrically coated metal cylinders using terahertz (THz) time-domain spectroscopy. A considerable sensitivity increase of up to a factor of 150 is obtained for layers ...
Terahertz two-cylinder waveguide coupler for transverse-magnetic and transverse-electric mode operation
(AIP Publishing, 2011-02-18)
We report the coupling and guiding of broadband terahertz radiation using a two-cylinder waveguide coupler. For the transverse electromagnetic TEM (TM0) geometry, the two opposing metal cylinders exhibit an amplitude ...