Abstract-3D Printed Prisms with Tunable Dispersion for the THz Frequency Range

Stefan F. Busch, Enrique Castro-Camus, Felipe Beltran-Mejia, Jan C. Balzer, Martin Koch

https://link.springer.com/article/10.1007/s10762-018-0488-0

Here, we present a 3D printed prism for THz waves made out of an artificial dielectric material in which the dispersion can be tuned by external compression. The artificial material consists of thin dielectric layers with variable air spacings which has been produced using a fused deposition molding process. The material properties are carefully characterized and the functionality of the prisms is in a good agreement with the underlying theory. These prisms are durable, lightweight, inexpensive, and easy to produce.