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Proceedings Paper

High-throughput fabrication of right-angle prism mirrors with selective metalization by two-step 3D printing and computer vision alignment
Author(s): Andrea Bertoncini; Gheorghe Cojoc; Jochen Guck; Carlo Liberale
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Paper Abstract

We propose a dual step µ-3D printing (two-photon lithography) strategy, which is the 3D version of the classic lithography etching-mask strategy, to achieve selective gold metallization for the realization of reflective micro-optics. We apply this strategy to obtain right-angle prism micro-mirrors used to create dynamic counterpropagating optical traps for biological samples in a holographic optical trapping setup with a single low-NA objective. We print the prisms on standard glass coverslips to create integrated optical trapping chips. We show the automatization of alignment between prisms and masks by a computer vision software.

Paper Details

Date Published: 28 February 2020
PDF: 8 pages
Proc. SPIE 11292, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII, 1129211 (28 February 2020); doi: 10.1117/12.2544147
Show Author Affiliations
Andrea Bertoncini, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Gheorghe Cojoc, TU Dresden (Germany)
Jochen Guck, Max-Planck-Institut für Lichtwissenschaft (Germany)
TU Dresden (Germany)
Carlo Liberale, King Abdullah Univ. of Science and Technology (Saudi Arabia)


Published in SPIE Proceedings Vol. 11292:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII
Georg von Freymann; Eva Blasco; Debashis Chanda, Editor(s)

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