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Proceedings Paper

Zero overlap stitching of microlens arrays with two-photon polymerisation
Author(s): S. Dehaeck; B. Scheid; P. Lambert
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Paper Abstract

When printing microlens arrays with a Nanoscribe Photonics Professional machine, the object is typically split in many smaller hexagonal or square fields, which are written with high-precision galvo-scanning mirrors (or with a piezo-stage). Displacements between these sub-fields are performed with a mechanical stage, which has a lower precision (±1μm). This results in misalignments in the XY-plane. However, also differences in the Z-plane are present due to limitations of the interface finding method. If such a stitching seam goes through a microlens, its resolving power is affected. In the present contribution, we will present an adaptive stitching algorithm that automatically places the writing blocks in such a way so as to avoid cutting through the individual microlenses completely.

Paper Details

Date Published: 22 May 2018
PDF: 7 pages
Proc. SPIE 10675, 3D Printed Optics and Additive Photonic Manufacturing, 106750B (22 May 2018); doi: 10.1117/12.2306384
Show Author Affiliations
S. Dehaeck, Univ. Libre de Bruxelles (Belgium)
B. Scheid, Univ. Libre de Bruxelles (Belgium)
P. Lambert, Univ. Libre de Bruxelles (Belgium)

Published in SPIE Proceedings Vol. 10675:
3D Printed Optics and Additive Photonic Manufacturing
Alois M. Herkommer; Georg von Freymann; Manuel Flury, Editor(s)

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