3D-printed phase waveplates for THz beam shaping

Autor(en)

J. Gospodaric, A. Kuzmenko, Anna Pimenov, C. Huber, D. Suess, S. Rotter, A. Pimenov

Abstrakt

The advancement of 3D-printing opens up a new way of constructing affordable custom terahertz (THz) components due to suitable printing resolution and THz transparency of polymer materials. We present a way of calculating, designing, and fabricating a THz waveplate that phase-modulates an incident THz beam (λ

₀ = 2.14 mm) in order to create a predefined intensity profile of the optical wavefront on a distant image plane. Our calculations were performed for two distinct target intensities with the use of a modified Gerchberg-Saxton algorithm. The resulting phase-modulating profiles were used to model the polylactide elements, which were printed out with a commercially available 3D-printer. The results were tested in a THz experimental setup equipped with a scanning option, and they showed good agreement with theoretical predictions.

Organisation(en)

Physik Funktioneller Materialien

Externe Organisation(en)

Technische Universität Wien

Journal

Applied Physics Letters

Band

112

Anzahl der Seiten

4

ISSN

0003-6951

DOI

https://doi.org/10.1063/1.5027179

Publikationsdatum

05-2018

Peer-reviewed

Ja

ÖFOS 2012

103021 Optik

Schlagwörter

ASJC Scopus Sachgebiete

Physics and Astronomy (miscellaneous)

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/e834841c-e930-4a21-9afc-c94d1f5ae446