Accurate metrology of freestanding wire polarizer characterization for terahertz sounding

The configuration, fabrication and determination of freestanding wire polarizer (FWP) were demonstrated for lower end of THz. Tungsten wire with a diameter of 10-micron was selected to ensure excellent propagation and reflectance up to 500GHz. It can be assumed that this FWP could keep approximated performance up to about 700GHz. The measurement results were in good agreement with the theoretical results by adopting Gaussian quasi-optic measurement system.