A Study of FSS in Terahertz Range for Polarization Modulation Purpose

A polarization sensitive frequency selective surface (FSS) composed of connected electric LC resonators is proposed as the terahertz wave filter. The experimental results match the simulation results well and show that the FSS has good capability of polarization control and wavelength selection. The tunability of FSS is also studied by investigating the relation between the conductivity of the joint area of bent-lines and the resonant peak position/strength. Such a device can be applied as a flexible polarization modulator.