Hermann A. Dürr is a professor of instrumentation and accelerator physics at Uppsala University, Sweden. He received his PhD degree in 1999 from the University of Bayreuth, Germany. After completing postdoctoral research at the University of Manchester, UK, and Oak Ridge National Laboratory, he joined the scientific staff of synchrotron radiation facilities such as Daresbury Laboratory, UK, and BESSY, Germany. In 2010, he became senior staff scientist at the SLAC National Accelerator Laboratory, and adjunct professor at the University of Amsterdam, The Netherlands. He pioneered the use of femtosecond soft x-ray pulses for studying ultrafast magnetization dynamics and is currently focusing on electrons to investigate ultrafast energy-transfer processes to phonons.