Surface Plasmon Propagation on a Film with Subwavelength Holes in the Terahertz Frequency Range

THz waveguide with a spit ring resonators layer

“…1 Simple and efficient concept is an array of metal Split Ring Resonators (SRR). Flat layer of SRR is a well known frequency selective surface.…”

“…2) where done with the use of a standard THz-time-domain technique. 1 To couple THz radiation into a waveguide mode we attach THz emitter directly to the sample front edge. As an emitter we use 1 mm thick ZnTe crystal, Thus, moving a spot of laser radiation we optimized generated THz coupling into the attached waveguide.…”