High-throughput fabrication of right-angle prism mirrors with selective metalization by two-step 3D printing and computer vision alignment

Andrea Bertoncini; Gheorghe Cojoc; Jochen Guck; Carlo Liberale

doi:10.1117/12.2544147

28 February 2020 High-throughput fabrication of right-angle prism mirrors with selective metalization by two-step 3D printing and computer vision alignment

Andrea Bertoncini, Gheorghe Cojoc, Jochen Guck, Carlo Liberale

Author Affiliations +

Proceedings Volume 11292, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII; 1129211 (2020) https://doi.org/10.1117/12.2544147
Event: SPIE OPTO, 2020, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Andrea Bertoncini, Gheorghe Cojoc, Jochen Guck, and Carlo Liberale "High-throughput fabrication of right-angle prism mirrors with selective metalization by two-step 3D printing and computer vision alignment", Proc. SPIE 11292, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII, 1129211 (28 February 2020); https://doi.org/10.1117/12.2544147

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