After a short hike, we set off on a canoe trip together on the Wiesent. The brief rain did not prevent us from admiring the beautiful natural surroundings.
When electrons emitted from a sharp metal needle tip are driven strongly by the electric field of few-cycle laser pulses, they can rescatter at the tip surface. This effect is well-known from the generation of high harmonics, an achievement that was recognized with the Nobel Prize in 2023. When one ...
A worthwhile episode of the SciShow is about our accelerator on a chip - but the entire history of accelerators is presented in a wonderfully clear way in about 12 minutes, starting with cathode rays and the cathode ray tube. After about 10 minutes, the program culminates in our results and those of...
Where is quantum control over free electrons with the help of optical near fields heading? Almost fifty authors under the leadership of Prof. Javier Garcia de Abajo (ICFO, Barcelona) and Prof. Pohlman (Amstedam) have put this view into the crystal ball on paper and have just published it in ACS Phot...
In order to test the vision of an endoscopic device for radiotherapy based on DLA structures, we are currently establishing biophysical experiments with low-energy electron radiation in the 30-50 keV range. In order to investigate the biological effectiveness - a measure of the effectiveness of the ...
Stefanie Kraus has successfully defended her strong dissertation on the experimental demonstration of the accelerator on a nanophotonic chip -- congratulations!
The fundamental limit of free-electron—light coupling is an important question relevant to frontier studies to reach the strong coupling regime, which is crucial for applications such as free-electron based photon sources, quantum sensing and quantum computing using free electrons. This study rigoro...
We used auto-ponderomotive potentials to guide electrons with kinetic energies of up to 9.5keV. This makes this type of electron beam manipulation also interesting for electron microscopes. The demonstration at higher energies than before paves the way for electron beam splitters and resonators at e...
In a 3-minute interview worth listening to, Dr Tobias Weitz explained what he achieved in his dissertation, which was awarded the German Study Prize, in the programme ‘Forschung aktuell’ on Deutschlandfunk radio.
With results that would have been enough for two dissertations, Jonas Heimerl has defended his thesis with flying colors. Congratulations, Dr. Heimerl!
Once again this year, we withdrew for two and a half days to discuss our projects in depth through presentations - and to listen to three more excellent presentations by invited guests. This year's guests were Jacob Pettine from MIT, Clarisse Woodahl from Stanford University and Ron Ruimy from the T...
Our former Master's student, PhD student and postdoc Christian Heide has now been appointed Assistant Professor at the University of Central Florida in Orlando after further successful years as a postdoc at Stanford - congratulations on this great success! He is now looking for new team members. Her...
