Our research is focused on the interaction of X-rays with matter to reveal its fundamental aspects and to develop new applications of X-ray scattering and spectroscopy with accelerator driven sources of hard X-rays. In particular these are:
- Development of photonic nanostructures like multilayers and planar cavities for controlling the interaction of x-rays and matter
- Investigation of cooperative effects in the light-matter interaction in the X-ray regime
- Pump-probe experiments to study the non-equilibrium dynamics of matter after impulsive excitations
- Development of non-equilibrium X-ray optics
- Applications of high-purity polarimetry for nuclear quantum optics and materials science
- Experiments towards establishing a nuclear clock based on the isotope Scandium-45
Our research methods comprise laboratory-based methods for preparation of multilayers and thin films together with x-ray analytics and laser pump-probe techniques in the laboratories in Jena, as well as the use of advanced instrumentation and X-ray scattering methods at synchrotrons and X-ray lasers.
- Development and applications of high-purity polarimeters at synchrotrons and x-ray lasers
- Mössbauer spectroscopy with imaging applications
- Laser pump – X-ray probe spectrometers
- Advanced sputter deposition setup for preparation of new functional materials
- High-resolution X-ray diffractometry for characterization of thin films and multilayers
Contact
Prof. Dr. Ralf Röhlsberger
- E-mail: r.roehlsberger(at)hi-jena.gsi.de
- Website: https://photon-science.desy.de/research/research_teams/magnetism_and_coherent_phenomena
- Tel: +49 3641 947-900
- Fax: +49 3641 947-602
Room: 206
Helmholtz-Institut Jena
Fraunhoferstr. 8
07743 Jena
Fraunhoferstr. 8
07743 Jena
Publications
Recent Publications
- Yu. V. Shvyd’ko et al.: Resonant X-ray excitation of the nuclear clock isomer Scandium-45. Nature 622 (2023), 471–475, DOI: 10.1038/s41586-023-06491-w
- A. T. Schmitt et al.: Disentangling x-ray dichroism and birefringence via high-purity polarimetry. Optica 8 (2021), 56–61, DOI: 10.1364/OPTICA.410357
- L. Bocklage et al.: Coherent control of collective nuclear quantum states via transient magnons. Science Advances 7 (2021), eabc3991, DOI: 10.1126/sciadv.abc3991
- K. P. Heeg at al.: Coherent X-ray optical control of nuclear excitons. Nature 590 (2021), 401–404, DOI: 10.1038/s41586-021-03276-x