Jeroen Kalkman studied physics at the Free University Amsterdam. He holds a PhD degree in Physics from Utrecht University. His PhD research was performed at the FOM Institute of Atomic and Molecular Physics in the Photonic Materials group on the topic of ‘Controlled spontaneous emission in erbium-doped microphotonic materials’. After spending two years in industrial research at Philips NatLab in Eindhoven, he moved back to academia and worked in the department of Biomedical Engineering and Physics at the Academic Medical Centre in Amsterdam. There he developed his interest in optical coherence tomography (OCT). Currently, he is at the Delft University of Technology, Department of Imaging Physics, where he leads a research group on optical tomography for imaging and sensing. One of his focus areas is quantitative flow and diffusion measurement with OCT. He has published more than 50 peer reviewed papers, has 10 patent applications, and received various research grants.