News

From September 27 to 30, the twice-annual conference of the ACHIP (Accelerator on a Chip International Program) collaboration took place in Erlangen, Germany. After 1.5 years, the conference could finally be held in a hybrid format again, so that at least a large part of our colleagues from differen...

Using optical near-fields generated by ultrashort laser pulses on a silicon nanostructure, free electron pulses can be selectively manipulated and accelerated on optical time scales. This acceleration technology is known as dielectric laser acceleration (DLA) - colloquially called acceleration onto ...

The Department of Physics at FAU awards its Ohm Prizes for outstanding theses. Already decided last year, but due to circumstances only handed over this year, Dr. Christian Heide and Urs Haeusler each received an Ohm Prize for their dissertation and master's thesis, respectively. Both were online at...

In the interaction between free electrons and light, light has long been described by Maxwell’s classical field equations. In collaboration with and under the leadership of Professor Ido Kaminer and with colleagues of the Israel Institute of Technology, the Technion, and Tel Aviv University we were ...

A variety of physical systems, from atoms to solids, can be reduced to two energy bands in their interaction with intense light fields to describe the essential dynamics. In our new paper, we use such a 2-band model to present an intuitive categorization into five different regimes - from the pertub...

In memory of Professor Mark Stockman, an exceptional theoretical physicist and dear colleague, we show in our recent publication that coherent control at nanotips made of the plasmonic material gold can be observed even approaching the strong-field region. In our experiment, photoelectrons are emitt...

In a special issue in memorial of our late colleague Mark Stockman, we compare two methods of light-field control of electric currents in graphene: Control via the carrier-envelope phase (CEP) of a single laser pulse at a central light frequency ω, and 2-color control using laser pulses at central l...

A review article on particle acceleration on a photonic chip by England, Hommelhoff and Byer has appeared in Physics Today, the journal of the American Physical Society. Here is the link to it.

And another dissertation defense -- Ang Li defended his dissertation with a sophisticated presentation and very good discussion with great success. Congratulations, Dr. Li! And what a delicious celebration in the evening!

Still under Corona rules, Robert Zimmermann defended his dissertation with great success, but at least for the first time in a long time with a proper doctoral party in the evening -- congratulations, Dr. Z!

After 35 years in the Physics Department at FAU, our long-time secretary Ms. Claudia Schlechte has reached what in her case was literally a well-deserved retirement. She said goodbye with a very nice farewell -- dear Mrs. Schlechte, thank you very much for that, thank you for your excellent work and...

Photoemission of electrons from a metal surface driven by femtosecond laser pulses can be controlled when a small fraction of a second laser field of different color, here, the second harmonic of the strong driving pulses, is superimposed. In our recent publication we show that this coherent control...