Ghost Synthetic Aperture with Computational Wavefront Shaping

Abstract

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.

Research progress of correlation imaging under outdoor environment

“…近几年还有一些新颖关联成像抗扰动方案被 相继提出. 2022年Lin等 [64] 研究发现当物臂存在 散射介质扰动时, 通过在参考臂加入与物臂散射介 质特征相似的散射介质就可以补偿散射光场的扰 动相位, 实现利用散射光的透过散射介质的关联成 像. 2022年, 孙帅等 [65] 提出了一种计算波前整形 的孔径合成关联成像方案.…”