Martin Frenz received the Dipl Phys degree in physics from the Albert-Ludwig University of Freiburg, Germany, in 1985, and the PhD in physics from the University of Bern, Switzerland in 1990. In 1995 he joined the University of Texas at Austin, USA. He was a visiting professor at the Macquarie University Sydney from 2010 to 2011 and from 2016 to 2017 at the University of Washington College of Engineering. In 2002 he became professor and head of the biomedical photonics department of the Institute of Applied Physics at the University of Bern, Switzerland. From 2008 to 2019 he acted as director of the Institute of Applied Physics. Martin Frenz is a fellow of SPIE and ASLMS. He serves as Editorial Board Member for Journal of Biophotonics, Photoacoustics and Journal of Biomedical Optics. His most recent work has explored new imaging modalities in biomedicine, including quantitative optoacoustic imaging and sensing, speed of sound imaging in reflection mode, in-vivo microscopy, optoacoustic contrast agents for imaging and therapy, light propagation in tissue as well as biomedical laser applications for medical diagnostics and therapy.