Towards high quality 3D printed THz devices with cyclic olefin polymer

There is an urgent need for low cost and easily accessible optical devices for THz applications. New optical devices can be manufactured rapidly with 3D printing while using THz transparent materials. In this work, to 3D print high-quality THz waveguides, we optimized the parameters for high-resolution 3D printing of a THz transparent filament, cyclic olefin copolymer.