Theuer, M.M.TheuerShutler, A.J.A.J.ShutlerHarsha, S.S.HarshaBeigang, R.R.BeigangGrischkowsky, D.D.Grischkowsky2022-03-042022-03-042011https://publica.fraunhofer.de/handle/publica/22615510.1063/1.3554761We 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 transmission comparable to that of the cylindrical silicon lens coupled parallel-plate waveguide, but in the transverse-electric orientation the two-cylinder coupler shows much better amplitude transmission.enTerahertz radiationmicrowave photonicsoptical couplersoptical waveguide621journal article