Using 3D printing and microfabrication techniques of TOPAS for THz lenses and detectors

Cyclic olefin copolymer (TOPAS) is a polymer transparent for frequencies up to 10 THz. TOPAS can be used for various THz devices and components. This work reports the 3D printing and the microfabrication of THz devices from TOPAS, namely microfluidic devices, lenses, flexible detectors, and freestanding THz filters.