Project description
Project S01 establishes organic molecular crystals (OMCs) as a platform for strong-field and attosecond physics. Building on the first demonstration of high-harmonic generation from ordered organic solids, the project aims to understand and control polarisation effects and symmetry breaking in high-harmonic generation (HHG) from OMCs. Their intermediate character between molecules and solids enables access to electron dynamics beyond atomic gases and conventional crystals. Polarisation-resolved HHG and modelling identify microscopic pathways and enable control of the emission.
Prof. Dieter Bauer
Phone: +49 (0)381 498 6940
dieter.baueruni-rostockde
Project description
In project S01, we will perform high-harmonic spectroscopy on organic molecular crystals. Molecular crystals bridge the gap between individual molecules with well separated states and bulk crystals with a band structure. This is because organic crystals feature electronic couplings of intermediate strength between the molecules. We will address the questions how the electronic and geometric structure of the molecular crystals affect the harmonic emission and which polarization properties result for the emitted harmonics.
Project leaders
Dr. Franziska Fennel
Phone: +49 (0)381 498 6966
Email: franziska.fenneluni-rostockde
Prof. Dieter Bauer
Phone: +49 (0)381 498 6940
Email: dieter.baueruni-rostockde
Publications
- Phase structure of below-threshold harmonics in aligned molecules: A few-level model system
S. Schöpa, L. Bielke, F.E. Wiechmann, F. Fennel and D. Bauer
Phys. Rev. Research 8, L022022 (2026)
- High-harmonic generation from two weakly coupled molecules: A simple tight-binding model
L. Bielke, S. Schöpa, F.E. Wiechmann, F. Fennel and D. Bauer
Phys. Rev. A 113, 043106 (2026)
- High-order harmonic generation in an organic molecular crystal
F.E. Wiechmann, S. Schöpa, L. Bielke, S. Rindelhardt, S. Patchkovskii, F. Morales, M. Richter, D. Bauer and F. Fennel
Nat Commun 16, 9890 (2025)
- Emergence of Quantum Vortices in the Ionization of Helium by Proton Impact, and How to Measure Them
T.A. Guarda, F. Navarrete and R.O. Barrachina
Atoms 13(1), 3 (2025)
- Harmonic generation with topological edge states and electron-electron interaction
S. Pooyan and D. Bauer
Phys. Rev. B 111, 014308
- The attoscience of strong-field-driven solids
S.M. Cavaletto, K.M. Kowalczyk, F.O. Navarrete and J. Rivera-Dean
Nat Rev Phys 7, 38–49 (2025)
- Ultrafast imaging of laser-induced modifications in planar targets via single-shot in-line holography
R. Altenkirch, C. Peltz, T. Böttcher, S. Lochbrunner, F. Fennel und T. Fennel
New J. Phys. 26, 113010 (2024)
- Quantitative prediction of excited-state decay rates for radical anion photocatalysts
L.D. Mena, J.L. Borioni, S. Caby, P. Enders, M.A.A. Cordero, F. Fennel, R. Francke, S. Lochbrunner and J.I. Bardagi
Chem. Commun. 59(64), 9726-9729 (2023)
- Formation of the solid-state high-order harmonic generation plateau through destructive interference
L. Bielke, H. Jürß, V. Burgtorf and D. Bauer
Phys. Rev. A 107(3), 033111 (2023)
- The N-shaped partition method: A novel parallel implementation of the Crank Nicolson algorithm
Y. Lutsyshyn, F. Navarrete und D. Bauer
Comput. Phys. Commun. 287, 108713 (2023)
(auch verfügbar auf arXiv)
- Benzothiazol picolin/isonicotinamides molecular switches: expectations and reality
A. Georgiev, V. Deneva, D. Yordanov, T. Völzer, S. Wolter, F. Fennel, S. Lochbrunner und L. Antonov
J. Mol. Liq. 356, 118968 (2022)
- News & Views: Optically sensing topological phase transitions
D. Bauer
Nat. Photon. 16(9), 614-615 (2022)
- Topological edge-state contributions to high-order harmonic generation in finite flakes
H. Jürß und D. Bauer
Phys. Rev. B 106, 054303 (2022)
- News & Views: Intense light drives band closure
D. Bauer
Nat. Photon. 16, 406-407 (2022)