3D-Printed Phase Waveplates for THz Beam Shaping
| Autor: | Gospodaric, Jan, Kuzmenko, Artem, Pimenov, Anna, Huber, Christian, Suess, Dieter, Rotter, Stefan, Pimenov, Andrei |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Appl. Phys. Lett. 112, 221104 (2018) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.5027179 |
| Popis: | 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 ({\lambda}=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 polyactide elements, which were printed out with a commercially available 3D-printer. The results were tested in an THz experimental setup equipped with a scanning option and they showed good agreement with theoretical predictions. Comment: 4 pages, 3 figures |
| Databáze: | arXiv |
| Externí odkaz: |
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