Welcome to the website of the Chair for Laser Physics!

At the moment we work in three main branches of research that combine the topics of laser physics, quantum, electron, and nano optics, strong-field and attosecond physics, plasmonics and solid state research. We investigate the wave and particle properties of electrons in ultrafast processes in and at nano objects; we develop new particle traps to create quantum optical systems in order to build a quantum electron microscope; we use laser pulses at photonic nanostructures to look into novel concepts for particle acceleration.

The main part of our laboratory is centered around light-matter interaction on fastest time scales, namely the femtosecond and attosecond time scale  (1 fs = 1 millionth of a billionth of a second, 1 as = 1 billionth of a billionth of a second). This allows us, to put it a bit more abstractly, to work towards understanding und utilizing photon-electron coupling in various systems. A part of this is based on highly advanced methods to control electrons, often with light fields, which requires building new laser sources and amplifiers.

Similar to surfers using the energy stored in sea waves to drive their motion towards the coast, elementary particles can surf a wave formed by tailored light fields. In a paper just published in Nature Physics, we have shown that the kinetic energy of electrons can be modulated on very short timescales by the interaction with an optical travelling wave.

“How fast can one turn on a current?” is a fundamentally important question behind boosting up the speed of modern electronics, since the data and signals are transferred via the flow of electrons. In joint work with the group of Prof. Heiko B. Weber of FAU's Applied Physics Chair, we have opened up a new channel for achieving ultrafast turning-on of currents in graphene, an exotic conducting material, on the timescale of a single femtosecond (1 femtosecond is a billionth of a millionth of a second).

The University of Erlangen promotes action against climate change by application of modern infrastructure based on renewable energies and zero emission mobility. At the chair of Laser Physics a roof top photovoltaics system was installed six years ago, making that location ideal to install charging ...