Profile and microstructure accuracy of two-photon polymerization fabricated structures: the case study of the Phloeodes diabolicus

Stefanos Mavrikos; Costas P. Grigoropoulos

doi:10.1117/12.3002378

12 March 2024 Profile and microstructure accuracy of two-photon polymerization fabricated structures: the case study of the Phloeodes diabolicus

Stefanos Mavrikos, Costas P. Grigoropoulos

Author Affiliations +

Proceedings Volume 12873, Laser-based Micro- and Nanoprocessing XVIII; 128730C (2024) https://doi.org/10.1117/12.3002378
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

Direct laser writing based on two-photon polymerization offers the capability of sub-micron accuracy and printing of curves in three-dimensional space. Maintaining the amplitude of the writing speed constant, the profile accuracy can be improved, which makes the fabrication of structures with complex exterior shapes feasible. Moreover, the filling pattern of the interior space of a structure can enhance significantly its mechanical response. These observations are applied to the case of Phloeodes diabolicus since its toughness is a result of the existence of special hinges and the orientation of the fibers in the interior space of its shell. In addition, an iteration feedback simulation procedure using LS-Dyna is proposed, and its usage is demonstrated in the case of complex geometries inspired by Phloeodes diabolicus.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Stefanos Mavrikos and Costas P. Grigoropoulos "Profile and microstructure accuracy of two-photon polymerization fabricated structures: the case study of the Phloeodes diabolicus", Proc. SPIE 12873, Laser-based Micro- and Nanoprocessing XVIII, 128730C (12 March 2024); https://doi.org/10.1117/12.3002378

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