Low-cost Terahertz Polarizers Manufacture in Virtue of PCB Production Process

This paper presents analysis of structural parameters impacting the polarization performance of a linear gate polarizer, then introduces the preparation process with a simple and cost-effectiveness method. This process offers several key advantages, including mature technology, a short preparation timeframe, and the crucial capability for mass production. The polarizer produced by this method has a thin and strong base, is structurally stable and can be easily mounted on a rotatable bracket for immediate use. Performance assessment is conducted using a terahertz time-domain spectrometer, high transmittance and extinction ratio are obtained, and the results demonstrate a strong correlation between the numerical analysis and experimental outcomes.