Jerker Widengren

Jerker Widengren is a Professor at the Royal Institute of Technology (KTH) within the Department of Physics, School of Engineering Sciences (SCI). His research focuses on advanced optical techniques in biophysics, nanophotonics, and biomedical imaging. He specializes in fluorescence spectroscopy, single-molecule imaging, and the development of novel upconversion nanoparticles for applications in deep-tissue imaging and cancer diagnostics. Widengren teaches courses such as Nanophotonics and Bionanophotonics, Fluorescence Spectroscopy for Biomedical Studies, and Experimental Biophysics, emphasizing practical skills and cutting-edge methodologies. His work bridges fundamental physics with biomedical applications, particularly in improving imaging resolution and minimizing phototoxicity in live-cell studies. Recent research highlights include advancements in MINFLUX microscopy, STED nanoscopy, and the design of low-cost NIR imaging sensors. Widengren’s contributions have implications for cancer biomarker detection, energy transduction in biological systems, and the optimization of fluorescent probes for clinical use.