The goal of this internship is to develop a unique combination of a scanning tunneling microscope, an optical microscope, and a Hanbury Brown and Twiss (HBT) interferometer for photon correlation measurements. Using this unique instrument, cutting-edge nano-optics experiments on plasmonic nanostructures coupled to quantum emitters will be performed. The tunneling current under the STM tip will be used as a source of local electrical excitation of the surface plasmons. The light produced will be collected using the optical microscope, and the photon bunching and anti-bunching effects will be demonstrated using the HBT interferometer (i.e. measuring the second-order correlation g(2) function of light). The internship includes a significant experimental component and instrumental development