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Updated: Aug 31, 2025

Microfabrication of Implantable Optics Integrated in a Microstructured Imaging Window for Advanced In Vivo Imaging
Published on: April 11, 2025
Maximizing transmittance in two-photon 3D printed materials for micro-optics in the visible
1University of Utah, Electrical and Computer Engineering Department, 50 S. Central Campus Dr., Rm. 2110, Salt Lake City, UT 94112-9206.
Abstract:
We characterize three commercial resins suitable for three-dimensional two-photon printing of mm3 volume micro-optical components for visible light - IP-S, IP-n162, and IP-Visio - under different print modes and post-processing conditions. Due to the combination of cured resin absorption and bulk scattering, we find a maximum total printed thickness of 4 mm (or greater) for at least 50% transmittance of red light, up to 2 mm for green light, and large maximum thickness variation for blue light (0.1 to 1 mm).
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