AI Dr Nicholas Karpowicz is a scientific researcher and project leader in the Ludwig Maximilian University of Munich and Max Planck Institute of Quantum Optics (MPQ). Within FLEET, Nicholas participated in time-resolved photoelectron, photocurrent and transient absorption studies exploiting ultrashort, intense waveform-controlled laser pulses for probing, triggering and controlling topological electronic phases of materials on sub-femtosecond timescales.