Zero overlap stitching of microlens arrays with two-photon polymerisation

S. Dehaeck; B. Scheid; P. Lambert

doi:10.1117/12.2306384

22 May 2018 Zero overlap stitching of microlens arrays with two-photon polymerisation

S. Dehaeck, B. Scheid, P. Lambert

Proceedings Volume 10675, 3D Printed Optics and Additive Photonic Manufacturing; 106750B (2018) https://doi.org/10.1117/12.2306384
Event: SPIE Photonics Europe, 2018, Strasbourg, France

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.

Citation Download Citation

S. Dehaeck, B. Scheid, and P. Lambert "Zero overlap stitching of microlens arrays with two-photon polymerisation", Proc. SPIE 10675, 3D Printed Optics and Additive Photonic Manufacturing, 106750B (22 May 2018); https://doi.org/10.1117/12.2306384

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