Aberration correction of optical dipole-traps array utilizing phase-modulated holographic technique

Atom arrays generated by optical dipole traps are essential in quantum experiments, enabling precise manipulation and simulation of quantum states. They offer a competitive platform for quantum simulations due to their flexible configurations and local state addressability. However, preparing dipole-trap arrays within a vacuum chamber is challenged by the requirement for the laser beam to pass through multiple optical components which can induce deviations in the laser beam profile and cause aberrations in the system. To address this issue, we apply a holographic phase pattern to correct the aberration of an array of optical dipole traps according to these optical elements. We start with embedding the phase patterns into an SLM to generate the array of optical dipole traps. We then examine the aberrations induced by each optical element and develop methods for their correction. This is implemented by feeding back the modified phase pattern to restore the intended array pattern and eliminate aberrations using the modified Gerchberg–Saxton algorithm. This research enables the precise preparation of optical dipole trap arrays, which are crucial for future work in developing cold single-atom arrays prepared in a vacuum system.