3D multi-plane sharpness metric maximization with variable corrective phase screens

Area of Science:

• Optical Engineering
• Image Reconstruction
• Holography

Background:

• Distributed-volume turbulence causes image aberrations.
• Sharpness metric maximization enhances image coherence.
• Digital holography captures 3D irradiance data.

Purpose of the Study:

• To apply sharpness metric maximization for aberrated image reconstruction.
• To investigate the effect of corrective phase screen quantity on image quality.

Main Methods:

• Utilized frequency-diverse digital holography to obtain 3D irradiances.
• Employed multi-plane sharpness metric maximization.
• Varied the number of corrective phase screens in the digital propagation path.

Main Results:

• Image reconstruction is feasible with fewer corrective screens than aberrating screens.
• Increasing the number of corrective screens enhances reconstructed image quality.

Conclusions:

• Sharpness metric maximization is effective for correcting turbulence-induced aberrations.
• The number of corrective phase screens directly correlates with improved image reconstruction quality.