Quirin Vrehen

Vrehen was born on 25 February 1932 in 's-Hertogenbosch.^[1][2] He obtained a PhD in physics from Utrecht University in 1963 under professor Volger with a thesis on electron spin resonance and optical studies of solids.^[2][3] From 1963 to 1966 he worked in the United States at the MIT National Magnetic Laboratory. At the institute he worked on magneto-optical experiments on semiconductors. Vrehen then returned to the Netherlands and started working at the Philips Natuurkundig Laboratorium.^[2] At the laboratorium he served as leader of the spectroscopy group. From 1980 to 1985 he focused on laser spectroscopy.^[3] He later became head physicist at the laboratorium.^[4]

Vrehen was elected member of the Royal Netherlands Academy of Arts and Sciences in 1988.^[4] He died on 5 February 2023 in Eindhoven.^[5]