Coherent coupling between excitons.
Simulated 2D-FWM spectra.
Coherent coupling between distant excitons revealed by two-dimensional nonlinear hyperspectral imaging.
In collaboration with researchers from Cardiff University, Prof. Vincenzo Savona (LTPN - Laboratory of Theoretical Physics of Nanosystems) demonstrate the existence of a long-range coherent coupling mechanism between individual localized excitons in a 5 nm GaAs/AlGaAs quantum well, introducing a novel tool of two-dimensional nonlinear coherent hyperspectral imaging.