The Michigan Engineer News Center

2017 Glenn F. Knoll Lecture

“High-Speed Imaging and Spectroscopy of X-Rays and Particles with Silicon Detectors”| Short Read
For more information about the Glenn F. Knoll Lecture series please contact the Nuclear Engineering and Radiological Sciences Department at (734) 764-4260 or email

Professor Glenn Knoll was a beloved member of the NERS faculty, and the Knolls’ loyal and sustained support remains evident throughout the Department’s activities today, including through the annual Glenn F. Knoll Lecture in Nuclear Engineering and Radiological Sciences. Lothar Strüder, CEO of PNSensor and Professor at the University of Siegen, Germany presents his lecture, “High-Speed Imaging and Spectroscopy of X-Rays and Particles with Silicon Detectors”.

“Glenn’s first love was his students and their research. He always enjoyed the contact he had with graduate students. This lecture series is a way that Glenn’s legacy can encourage engagement between University of Michigan students and researchers in radiation measurement,” says Gladys Knoll, Professor Knoll’s wife. “The NERS department has been like an extended family to the Knoll family, and it has been a delight to us to see it grow both in size and prestige. Glenn and I both took pride in the achievements of the faculty and their graduates, and we felt that they, collectively, did work that makes our world better and safer. This is part of our legacy, too.”

Portrait of Robert Coelius


Robert Coelius
Multimedia Producer

Michigan Engineering
Communications & Marketing

(734) 323-4904

3214 SI-North

The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

Rather than installing new “2D” semiconductors in devices to see what they can do, this new method puts them through their paces with lasers and light detectors. | Medium Read