Paper 13381-42
Paper 13381-42
Direct 3D printing of optical elements with xolography (Invited Paper)
29 January 2025 • 1:30 PM - 2:00 PM PST | Moscone South, Room 155 (Upper Mezz)
Abstract
Xolography is a volumetric 3D printing method utilizing dual-color photoinitiators to fabricate layer-free objects from photopolymer resins, ranging from millimeters to centimeters in size. It enables fast, continuous printing of complex threedimensional objects, which are free of internal interfaces and possess optical-grade surfaces immediately after printing. The development of photobleaching dual-color photoinitiators together with a light sheet configuration, which prevents the evolution of striping artifacts, allows us to 3D print transparent and smooth optical elements within few minutes printing time and without the need for any additional process steps such as coating or polishing. In combination with its capability to print complex freeform geometries and the use of highly viscous photopolymer resins, Xolography has the potential to revolutionize prototyping and fabrication of optical elements.
Presenter
Martin Herder
xolo GmbH (Germany)
Martin Herder is a chemist passionate about the interaction of materials with light. After completing his PhD on molecular photoswitches at Humboldt University Berlin, Germany, in 2015 he moved to Strasbourg, France, for postdoctoral research on photodynamic reaction networks in the laboratories of Prof. Jean-Marie Lehn. In 2018 he joined micro resist technology GmbH in Berlin, Germany, as an R&D scientist and project manager developing photopolymer materials for micro- and nanooptical applications. Since 2022 he is responsible for material and application development at xolo GmbH bringing forward the 3D printing of optical elements with xolo’s unique volumetric printing technology.