Electrodynamic parameters measuring of one-dimensional wire gratings in THz range

For successful application of one-dimensional wire gratings (OWG) as the elements of the various devices in THz-range the experimental determination of the electrodynamic parameters of such gratings is needed. In this paper we propose a new method of determination of the phase shift of OWG, based on the use of OWG as an output mirror of HCN-laser.