Wolfram Helml

Jun.-Prof. Dr. Wolfram Helml is a faculty member in the Department of Physics at the Technical University of Dortmund, where he leads a research group at the Center for Synchrotron Radiation (DELTA). His work focuses on probing ultrafast electron dynamics at the attosecond scale using advanced X-ray spectroscopy techniques.

His research interests include attosecond physics, ultrafast electron dynamics, and time- and angle-resolved X-ray spectroscopy. He employs X-ray free-electron lasers such as LCLS (USA) and European XFEL (Hamburg) to visualize fundamental excitation processes in atoms, molecules, and biological systems. By combining circularly polarized laser fields with X-ray pulses, his team constructs streaking cameras capable of measuring electron emission with extreme temporal precision.

The recent publications highlight a growing integration of artificial intelligence for real-time analysis of ultrashort X-ray pulses, developed in collaboration with researchers at the University of Kassel. These innovations aim to enable online, time-resolved spectroscopy at large-scale FEL facilities.

Scientific contributions include:

• First demonstration of attosecond streaking with FEL pulses at LCLS (2018)
• Development of AI-based tools for pulse characterization (2022)

He is actively involved in experimental development at DELTA and future applications at European XFEL. No information is available regarding students or formal advising roles. He is based in Room DELTA 01 at the Maria-Goeppert-Mayer-Str. 2 facility in Dortmund.