Transition metal dichalcogenides (TMDs) have recently attracted significant interest because they allow the exploration of novel quantum phenomena down to the 2D limit. Of particular interest for the present project are metallic TMD like NbSe2 which displays various quantum phases like Superconductivity (SC) and charge density wave (CDW) states [Xi16]. The possibility of fabricating these 2D crystals into vertical “van der Waals” (VdW) heterostructures make them ideal candidate for the integration into cavities to enhance light-matter interaction and achieve cavity control of quantum phases. In addition, the formation of Moiré patterns due to the lattice mismatch and crystalline misalignment between vertically stacked layers is another unique aspect of the VdW layered structures, offering opportunities for quantum engineering of material properties [Cao18]. During the internship, the student will participate in the first steps of this ambitious project. He/she will study TMD-based VdW heterostructures displaying SC properties using exfoliation techniques. Going beyond traditional transport measurements, an originality of the project will be the use of low temperataure spectroscopic techniques with micron-size spatial resolution like Raman scattering to probe the SC state [Grasset2018,Grasset2019]. In the longer term these optical techniques will be implemented in out-of-equilibrium pump-probe schemes and in equilibrium on cavity-integrated samples.