Volumetric 3D Printing: Two-Photon Polymerization

This lecture covers the principles of volumetric 3D printing, focusing on two-photon polymerization. It explains the limitations of traditional 3D printers, introduces the concept of single photon printing in 3D, and discusses the process of radical chain polymerization. The lecture also delves into reaction kinetics, tomographic imaging, the Radon transform, and backprojection in 3D printing. It explores the use of Fourier transform and the Central Slice Theorem in imaging, as well as pattern filtering techniques. The instructor explains the concept of two-photon absorption and its applications in 3D printing, detailing the differences between one and two-photon absorption. The lecture concludes with insights into feedback-assisted volumetric printing, confining solidification through polymerization threshold, and the setup for two-photon polymerization.