Development of a dynamic projection device in a microscope optical system with application in two-dimensional printing

Abstract

This diploma thesis presents the development, optimization, and experimental validation of an innovative optical projection system for enhancing the Laser-Induced Forward Transfer (LIFT) technique in microfabrication and two-dimensional printing applications. The proposed approach replaces conventional serial scanning with dynamic laser beam shaping using a Digital Micromirror Device (DMD), enabling the rapid transfer of complex patterns in a single exposure. A complete experimental setup was developed and evaluated, and surface ablation and printing experiments were performed on gold and nickel–graphene samples, with characterization by optical microscopy and SEM. The results demonstrate a spatial resolution approaching the theoretical diffraction limit (475 nm), highlighting the advantages of parallel projection over conventional scanning for microfabrication applications.