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Quantum dance to the beat of a drum

© Brad Baxley, PtW

We have established ultrafast scanning tunnelling spectroscopy on the femtosecond time, atomic length and milli-electron-volt energy scale. This has allowed us to directly resolve the energy shift of a single atomic defect in a monolayer of tungsten diselenide due to drum-like phonon vibrations.

The results obtained in a close collaboration with the groups of Jascha Repp (University of Regensburg) and Jan Wilhelm (University of Regensburg) have appeared in Nature Photonics.... more


Mode-multiplexing deep-strong light-matter coupling

In close collaboration with the groups of Dominique Bougeard (UR) and Christoph Lange (TU Dortmund), we were able to reach record-breaking, deep-strong light-matter coupling with a coupling strength of up to 3.19. This, for the first time, creates vacuum ground state populations exceeding 1 virtual excitation quantum.

The results have been published in Nature Communications.... more


Best Lecture Award

Our lecture on Light Matter Interaction was awarded with the Best Lecture Award of the Faculty of Physics. Image (from left to right): Manuel Meierhofer, Rupert Huber, Simon Maier, Marlene Liebich
Missing: Markus Huber... more


Feodor Lynen Research Fellowship for Joshua Mornhinweg

Congratulations to Joshua Mornhinweg for being awarded the prestigious “Feodor Lynen Research Fellowship” from the Alexander von Humboldt Foundation!

The fellowship recognizes Joshua’s outstanding scientific work on deep-strong light-matter coupling and will allow Joshua to join the group of Prof. Federico Capasso at Harvard University to work on novel “polaritonic and superconducting reconfigurable THz metasurfaces”.
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Graduate Research Training Group 2905 funded

© Brad Baxley, PtW

The new Graduate Research Training Group 2905 - "Ultrafast nanoscopy - from single particle dynamics to cooperative processes" - will be funded for five years.

The program will start April 2024 and allows graduate researchers to unveil the internal dynamics of the elementary building blocks of matter. Novel concepts of nanovideography will be pioneered to resolve atomic-scale dynamics and to trace ensuing cooperative processes in systems of increasing complexity directly in ultraslow-motion pictures. The discoveries could find applications in future nano- and optoelectronics, quantum technologies and green technologies.

Press release (UR) in German and English.
Press release (idw) in German and English.... more


Josef Freudenstein receives IRMMW-THz 2023 best student presentation award

We congratulate Josef Freudenstein on winning the first prize of the best student presentation award of the 2023 International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) in Montréal.

The prize honours original contributions to the conference from outstanding student attendees and was awarded for his talk titled “Attoclocking delocalized Bloch electrons with multi-terahertz fields".
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Our latest review on lightwave electronics in condensed matter has appeared

In collaboration with Mackillo Kira and Markus Borsch from the University of Michigan, we have reviewed the field of lightwave electronics ranging from high-harmonic generation to subcycle imaging concepts.

The review has been published in Nature Reviews Materials.
... more


Best Lecture Award & Best Tutor Award

Our lecture on physics of atoms and molecules was awarded with the Best Lecture Award of the Faculty of Physics. Martin Zizlsperger also received the Best Tutor Award, congratulations!

Image (from left to right): Markus Huber (front), Rupert Huber (back), Carmen Roelcke, Simon Maier (front), Marlene Liebich (back), Felix Schiegl, Manuel Meierhofer, Martin Zizlsperger (inset)
Missing: Josef Riepl... more


How electrons dress up in light

In close collaboration with the group of Ulrich Höfer (University of Marburg), we observed the ultrafast birth, rise, and collapse of a Floquet-Bloch band structure, for the first time. Angle-resolved photoemission spectroscopy combined with atomically strong light fields revealed that Floquet-Bloch bands form already after a single optical cycle and play an intriguing role in high-harmonic generation. These surprising findings pave the way to tailored quantum functionalities and ultrafast electronics. Theoretical modeling by Michael Schüler (Paul Scherrer Institute, Villigen) and Michael Sentef (MPI Hamburg) convincingly supported the conclusions.

The results have been published in Nature.
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Svenja Nerreter selected as 2023 Optica Women Scholar

We are thrilled to announce that Svenja Nerreter has been selected as an Optica Women Scholar 2023.

This exceptional award recognizes outstanding Bachelor's and Master's students in the field of optics and photonics, and comes with a grant of $10,000 and access to a valuable mentoring platform.

Congratulations, Svenja!

Press release (UR) in German
... more


Best Lecture Award

Our lecture on Light Matter Interaction was awarded with the Best Lecture Award of the Faculty of Physics. Image (from left to right, top): Manuel Meierhofer, Lukas Kastner, Rupert Huber (professor), Markus Huber, Martin Zizlsperger, Simon Maier, (bottom:) Johannes Hayes, Marlene Liebich... more


New website of the ERC Synergy grant "Orbital Cinema"

Directly watching in slow-motion videos how electrons move in quantum mechanical orbitals and how this motion shapes the functionalities of condensed matter has been a dream shared by all natural and life sciences. Yet, this vision comes with the daunting challenge of mapping the microscopic structure of electronic orbitals with simultaneous ultrafast time resolution.

We will turn orbital cinematography into reality.

Read more on https://orbital-cinema.eu/.... more


Vacant position for Master or PhD research in lightwave-driven tunnelling microscopy

Would you like to delve into the nanocosm and use state-of-the-art ultrafast nanoscopy techniques to investigate the inner workings of matter? What if you could even do that simultaneously at Angström spatial and femtosecond temporal scales?

Our group has vacant positions for young scientists at the Master's and PhD level to join us in cutting edge research and measurement techniques, opening the doors to solving fundamental and previously untouchable fields in nanoscale light-matter interaction, high-temperature super-conductivity, exciton dynamics and more.
Working closely with colleagues from both scanning tunnelling microscopy and ultrafast optics, your tasks would include design, setup and operation of nanoscopy equipment as well as analysis and modelling of the results with the focus depending on your individual preferences.

You are highly motivated, have a physics background and want to work in a stimulating environment uncovering the mysteries of the nanoscopic world?

Get in touch with us.... more


"Nacht schafft Wissen!" in unseren FemtoLabs

Im Rahmen des regensburgweiten Events "Nacht schafft Wissen!" wurde Interessierten und Physikbegeisterten in Führungen durch unsere Kellerlabore Ultrakurzzeit- und Laserphysik an spannenden Vorführexperimenten nähergebracht.

https://www.uni-regensburg.de/veranstaltungen/nacht-schafft-wissen/einblicke-2022/index.html ... more


ERC Synergy Grant for “Orbital Cinema”

Together with our partners, Stefan Tautz from Jülich, Ulrich Höfer from Marburg, and Peter Puschnig from Graz, we have been awarded an ERC Synergy Grant worth 11.3 million €. In a close collaboration of our groups we will take actual slow-motion movies of molecular orbitals during charge transfer processes, chemical reactions, and wave packet motion driven by lightwaves.

Press release (idw) in German.... more


July 2023
Launch of the ERC project Orbital Cinema