Contrary to common belief, dark excitons play an important role in transient absorption spectroscopy. In this work, which is currently under review by Nano Letters, we demonstrate how different dark excitons contribute to the measured transient absorption spectrum. Theory also allows us to isolate the individual contributions and evaluate their importance in the final spectrum…. Read More
In this short talk, I will present the main activities of the Condensed Matter Division (DMC) of the French Physical Society (SFP). These range from prizes for the best theses to support for conferences and workshops. Presentation_DMC.odp
Our new work on “Temperature dependent nonlinear optics” is finally online. In this work we combine many-body perturbation theory for the electron-phonon coupling with real-time dynamics for the electrons in such a way to describe the temperature effects in the non-linear response. The preprint is available here: https://arxiv.org/abs/2609.07796v1