Optical analysis of 3D-printed terahertz waveplates from common thermoplastics
Gabriel F Freitas, Lucas T Roque, Nicolas M Kawahala, Felix G G Hernandez · 2025
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Description
Gabriel F Freitas and co-authors print terahertz waveplates from three hobby plastics and grade them, in a 2025 paper. Waveplates steer the polarization of terahertz waves, a band prized for imaging and sensing, but commercial ones are pricey. The team used a fine-nozzled 3D printer to lay down thin gratings in PLA, ABS, and HIPS, a trick that bends the two polarizations by different amounts.
Spectroscopy showed HIPS absorbed least and steered most steadily, ABS came second, and PLA drank too much of the beam. Measured behavior matched theory below the grating's limit. The study gives labs a cheap recipe for custom terahertz optics.
Catalog record
| CREATOR | Gabriel F Freitas, Lucas T Roque, Nicolas M Kawahala, Felix G G Hernandez |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 30 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |