| Autor: |
Gospodaric, J., Kuzmenko, A., Pimenov, Anna, Huber, C., Suess, D., Rotter, S., Pimenov, A. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 5/28/2018, Vol. 112 Issue 22, pN.PAG-N.PAG, 4p, 1 Diagram, 2 Graphs |
| 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 (λ0 = 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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