Exploiting the single-atom-resolved detection in momentum space [1], the Helium lattice team has studied and characterized interacting lattice Bose gases in three-dimension (3D) (see for instance [2]). A fascinating feature of interacting lattice bosons is that they undergo a quantum phase transition from a superfluid state to an insulator state, called a Mott insulator. A main drawback of the configuration used so far in our experiment lies in the presence of a harmonic trap: it implies that we probe gases with non-homogeneous atomic density and couplings in the lattice. Since the physics of the Mott transition strongly depends on the spatial homogeneity of these parameters, the study of the critical regime of the Mott phase transition is strongly impaired. Our plan is to upgrade the apparatus to realize homogeneous samples and probe the physics of the critical regime of the Mott transition. We propose to combine the use of a high numerical aperture (NA) microscope - to shine optical potentials with high resolution - with the use of a digital mirror device (DMD) to create arbitrary patterns of optical potentials (see picture). The aim of the internship consists in (i) characterizing the optical potentials created by the DMD, (ii) conceiving the optical setup to address the atoms with the light potential reflected from the DMD and, (iii) verifying the properties of the optical potentials on a test optical bench.