Quantum emitters coupled to nanostructured phase-change materials for active emission control

Vanadium dioxide is one of the most promising phase-change materials, displaying a first-order semiconductor-to-metal phase transition, that occurs right above room temperature close to 70 °C. In this thesis, we focused on the study of the active change of the radiative lifetime of quantum emitters coupled to a Vanadium dioxide thin film, to investigate first the thermally induced transition and then the optically induced one under fast (ps pulsed laser) or ultrafast (fs) pump-probe excitation.