Paper 13354-1
Paper 13354-1
Flow dynamics of multi-material exchange in two-photon absorption 3D printing (Invited Paper)
28 January 2025 • 8:30 AM - 8:55 AM PST | Moscone Center, Room 155 (South Upper Mezz)
Abstract
The study showcases the evolution and versatility of two-photon absorption (2PA) in 3D printing. Using the in-situ material exchange system MergeOne system, we successfully fabricated diverse structures and analyzed laminar flow dynamics with fluorescence microscopy. Computational flow dynamics simulations confirmed the observed behavior. We demonstrated lateral multi-material micro-lens printing, along with precise control over material exchange and polymerization parameters. This approach enhances design flexibility and functionality, particularly in additive manufacturing, marking significant advancements in commercial 2PA technology.
Presenter
Robert Kirchner
HETEROMERGE (Germany), TU Dresden (Germany)
Since his PhD in integrated polymer photonics in 2011, Dr. Robert Kirchner has been fascinated by advanced manufacturing of 3D structures. He has worked on nanoimprint lithography for microcavities during his PhD and on grayscale electron beam lithography as well as 2PP for diffractive and refractive optics pattern origination during his postdoc. He has led a research group on mesoscopic 3D systems at the TU Dresden. As co-founder and CEO of HETEROMERGE GmbH, he is working on the commercialization of micro-additive manufacturing of functional 3D structures today.