Ghost Synthetic Aperture with Computational Wavefront Shaping

Although optical synthetic aperture has been generally accepted as preferred technique to achieve very large pupil, the optical cophase of all the gaint subapertures is still a difficult task currently. Besides, the associated adaptive optics combatting the atmospheric turbulence presents hard to conduct. Here we demonstrate an incoherent optical synthetic aperture based on lensless ghost imaging method, in which diffraction-limited imaging can be performed even when the distributed sub-sources is non-cophased. Better yet, the wavefront shaping is computationally implement via an iterative algorithm, rather than actual optical modulation process. These enhancement makes the presented technique far easy under current techniques, and promising in many optcial sensing applications.