On appointment

• > 330 technical papers
• > 30 invited international conference talks
• About 100 seminars
• Editor of the book VCSELs, Springer, 2013
• Supervision of 16 PhD students
• Co-chair of biannual SPIE Photonics Europe Conf. 2008–2020, Semiconductor Lasers and Laser Dynamics
• Chair of the European VCSEL Day 2018 Workshop
• Apl. Prof. 2012
• Habilitation 2009
• Head of the VCSEL Group since 2001
• Guest Scientist at Bell Labs, Lucent Technologies, Holmdel, NJ, 1999–2000
• Offer to become the Director of the Institute of Optoelectronics at the University of Duisburg-Essen, Duisburg, Germany, 2010, declined
• Cooperation Prize between Science and Industry of Ulm University, 2007
• Merckle Research Prize, 2003
• Heinz Maier-Leibnitz Prize of DFG and BMBF, 1999
• Best Student Prize of the State of Lower Saxony, Germany, 1989