Recent progress in broadband, coherent sources of ultrashort mid-infrared (MIR) pulses and electric-field-resolved spectroscopy (FRS) has opened up a vast potential for new applications of vibrational fingerprinting to high-throughput classification of biological systems in their natural, aqueous state1. At the Laboratory of Lightwave Metrology (http://lightwavelab.de/) the candidate will join a dynamic, multi-disciplinary team, developing MIR-FRS technology toward its application to real-life biomedical settings. The candidate will work at the Leibniz-IPHT on the development of a new generation of ultracompact FRS instrumentation. The affiliation with the Field-Resolved Optical Precision Metrology Group within the Spectroscopy and Imaging Department at the Leibniz-IPHT and the close proximity to the Fiber and Waveguide Lasers Group at the Institute of Applied Physics of the Friedrich Schiller University Jena will provide access to state-of-the-art laser laboratories and cutting-edge infrared vibrational spectroscopy techniques1,2. The position is funded by the recently awarded ERC Consolidator Grant «LIVE - Laser-Based Infrared Vibrational Electric-Field Fingerprinting» and is furthermore affiliated with the DFG Cluster of Excellence "Balance of the Microverse" (https://www.microverse-cluster.de/en/) . Close collaborations with the Department of Anesthesiology and Intensive Care Medicine as well as the Institute for Clinical Chemistry and Laboratory Diagnostics, both at the Jena University Hospital, afford the prospect of immediate real-life applications of the novel technologies. - Temporal compression of ultrashort pulses to the few-cycle regime and generation of broadband, waveform-stable MIR radiation by means of nonlinear optics in fibers and bulk - Development of novel, quantum-efficiency and speed-optimized electric-field sampling techniques