THz-Characterization of Additively Manufactured Spiral Shaped Waveguides

This paper provides insight of additive manufacturing of spiral shaped waveguides using suitable low loss polymer materials and their THz characterization for the frequency range of 0.1 THz to 0.6 THz. The spiral shaped waveguides are evaluated for material losses as well as in-and outcoupling losses with respect to the increasing length of the waveguides.