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Super-fine inkjet process for alignment-free integration of non-transparent structures into 3D-printed micro-optics
Author(s): Andrea Toulouse; Simon Thiele; Harald Giessen; Alois M. Herkommer
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Paper Abstract

The performance of microlenses fabricated via femtosecond direct laser writing is insuperably limited with regards to image contrast within its all-transparent material system. Our proposed super-fine inkjet process for the realization of apertures and non-transparent hulls both shields stray light and adds additional optical design parameters, namely diameter, shape, and position of the aperture. A micropinhole camera, a high-contrast imaging microlens, and a telecentric system are demonstrated. Our method is most suitable for 3D-printed micro-optics due to its one-step integration and auto-adjustment of the aperture position and can be useful for highly precise integration of functional materials beyond mere non-transparency.

Paper Details

Date Published: 4 March 2019
PDF: 10 pages
Proc. SPIE 10930, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XII, 109300W (4 March 2019); doi: 10.1117/12.2513520
Show Author Affiliations
Andrea Toulouse, Univ. Stuttgart (Germany)
Simon Thiele, Univ. Stuttgart (Germany)
Harald Giessen, Univ. Stuttgart (Germany)
Alois M. Herkommer, Univ. Stuttgart (Germany)

Published in SPIE Proceedings Vol. 10930:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XII
Georg von Freymann; Winston V. Schoenfeld; Raymond C. Rumpf, Editor(s)

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