10.18453/rosdok_id00004400 Liewehr, Benjamin Benjamin Liewehr http://d-nb.info/gnd/1298160782 https://orcid.org/0000-0003-1312-6561 Universität Rostock 2023 530 Physics 2023 en http://purl.uni-rostock.de/rosdok/id00004400 urn:nbn:de:gbv:28-rosdok_id00004400-9 This dissertation on the ionization-induced nonlinear radiation response of large bandgap dielectrics provides (i) the identification of the dominant contribution of ionization-induced low-order harmonics based on the so far overlooked injection current, (ii) the demonstration of opportunities for monitoring ultrafast plasma generation by non-perturbative wave mixing, and (iii) the identification of potentials for sub-cycle plasma generation using tailored laser fields for the generation of optically controlled sub-wavelength structures for laser materials processing.