This paper presents a CW terahertz near-field reflectometry setup using metal wires waveguide. This setup, developped at Montpellier University, is working at 100 GHz.
Plasmon
Near-field wire-based passive probe antenna for the selective detection of the longitudinal electric field at terahertz frequencies
Adam, R., Chusseau, L., Grosjean, T., Penarier, A., Guillet, J. P., & Charraut, D. (2009). Near-field wire-based passive probe antenna for the selective detection of the longitudinal electric field at terahertz frequencies. Journal of Applied Physics, 106(7), 073107.
Coupling and propagation of Sommerfeld waves at 100 and 300 GHz
The coupling between a linearly-polarized gaussian beam and a Sommerfeld wave propagating on a circular metallic wire is obtained owing to a differential phase element inserted in front of the metal wire. At millimeter-wavelengths we calculate a theoretical maximum coupling efficiency of 32% for this system in spite of the metal nature and radius in … Read more