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


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.


3D print Prism Terahertz THz Mechanic Compression Tunable Dispersive Dispersion Polystyrene Structured material 



The authors will like to acknowledge Kirsti Krüger for the pictures of the 3D printed devices in Figs. 2 and 5.

Funding information

F. Beltran-Mejia acknowledges support from Finep/Funttel (01.14.0231.00) under the Radiocommunication Reference Center—CRR, project of the National Institute of Telecommunications – Inatel, Brazil.


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Authors and Affiliations

  1. 1.Department of PhysicsPhilipps University of MarburgMarburgGermany
  2. 2.Centro de Investigaciones en Optica A.C.LeonMexico
  3. 3.National Institute of Telecommunications – InatelSanta Rita do Sapucai/MGBrazil
  4. 4.Faculty of EngineeringUniversity of Duisburg-EssenDuisburgGermany

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