This project aims to overcome these limitations through the design of a new flexible quantum sensor based on an atomically-thin two-dimensional (2D) material. To this end, we will study the magneto-optical properties of recently discovered spin defects in 2D hexagonal boron nitride (hBN) also known as white graphene. The internship work aims at building a state-of-the-art optical setup to measure quantum properties of color centers in hBN. This will include the development of a Hanbury Brown and Twiss measurement setup to assess the single photon nature of the emitters and the measurement of their spin relaxation and coherence times. This project makes a bridge between two vibrant fields of research in condensed matter: (i) point defects for quantum technologies and (ii) 2D materials beyond graphene. It is expected to have strong and broad impacts for applied science (printed electronics, spintronics, optoelectronics …) and from the point of view of fundamental physics. This experimental work will benefit from the state-of-the art facilities and the world-recognized expertise of LPCNO Toulouse for the fabrication of atomically thin materials and their study by advanced optical spectroscopy tools. In particular, the candidate will have the opportunity to work with tunable wavelength lasers, liquid Helium magneto-cryostats and single photon detectors.