ultrafast quantum physics and photonics
ERC Synergy Grant for “Orbital Cinema”
subcycle dynamics in quantum materials
in lightwave electronics
the nanoworld in motion
non-adiabatic quantum electrodynamics
Many of the fundamental laws and unexpected phenomena in condensed matter physics are caused by extremely fast dynamics of electrons and ions on the femtosecond time (1 fs = 10-15 s) and terahertz frequency scale (1 THz = 1012 Hz). Unravelling such ultrafast processes is the main interest of our research. We develop next-generation, high-intensity femtosecond laser sources and THz technology, and employ them to explore novel femtophysics.
Click on the images above or check our Research page for more information on our current work.
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Latest News
 | We congratulate Martin Zizlsperger on winning the 2022 Maiman Student Paper Award, one of the most prestigious and honoured student awards in optics and photonics worldwide.
Press release (UR) in German. |
In collaboration with the group of Ermin Malic (University of Marburg), we used ultrafast near-field microscopy to study the Mott transition of strongly-bound excitons in an atomically thin heterostructure of WSe2, unveiling pronounced nanoscale modulation in the dynamics of the transition. These findings underscore how nanoscale disorder plays a pivotal role in the dynamics of many-body phase transitions within a broad range of van der Waals materials.
The results have been published in Nano Letters.
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Collaborating with partners from Germany, France, UK and Sweden we observed high-order terahertz nonlinearities directly in a free-running quantum cascade laser. With field-resolved two-dimensional spectroscopy we revealed up to eight-wave-mixing processes in a regime of negative absorption as well as the laser’s sub-cycle gain dynamics. High-order nonlinearities of this kind have the potential for various future applications, ranging from efficient intracavity frequency conversion and mode proliferation to passive mode locking.
The results have been published in Light: Science & Applications....
more
 | The Ministry of Science and Technology of Taiwan has awarded our former team member and close collaborator Chaw-Keong Yong, who was recently appointed assistant professor at National Taiwan University, with the Columbus research grant. This fellowship recognises his work on 2D quantum materials and ultrafast optical spectroscopy as well as his extensive collaborative works with scientists across the world. The grant provides Prof. Chaw-Keong Yong with the opportunity to establish a competitive research group exploring quantum optoelectronic properties of atomically thin materials using ultrafast optical microscopy. |
Dr. Fabian Mooshammer has received the "Kulturpreis Bayern" for his PhD Thesis "Multi-terahertz nanotomography of van der Waals quantum materials". The prize honours people who enrich our society with their commitment, their work and their enthusiasm for art, culture and science.... more
For more News from our group, please click here or on the menu item on the left.
Funding agencies
Our group regularly receives funding from national and international research agencies. Among them are:
with funding for SFB 1277, GRK 2905, as well as smaller grants (HU1598) and major instrumentation
through several grants, including ERC grant 101071259 (Orbital Cinema), ERC grant 305003 (QUANTUMsubCYCLE) and ERC grant 681379 (SPRINT)
with several current and past fellowships, including funding for N. Nilforoushan
funding the Regensburg Center for Ultrafast Nanoscopy according to Art. 91b Abs. 1 Satz 1 GG
Social Media
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Peter Menden - 12.05.2025 14:20 
July 2024
June 2024
Coverstory in Nature Photon.
May 2024
Publication in Nature
July 2023
Launch of the ERC project Orbital Cinema
April 2023
Publication in Nature
October 2022
Publication in Nature
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