Correlated-Photon Imaging with Cancellation of Object-Induced Aberration

TL;DR

This paper demonstrates a modified interferometry setup that enables aberration-free correlated-photon imaging, including 'ghost' imaging, using both quantum-entangled and classical light sources, with potential for superimposing images of multiple objects.

Contribution

It introduces a novel apparatus for aberration-cancelled correlated-photon imaging that works with both quantum and classical light sources, enabling superimposed imaging of objects.

Findings

Images are free of object-induced phase distortions near a specific plane.

The apparatus can superimpose images of two objects.

It functions with both quantum-entangled and classical correlated light sources.

Abstract

We show that a recently discussed apparatus for aberration-cancelled interferometry may be modified to perform correlated-photon imaging in the so-called "ghost" imaging configuration. For objects in the vicinity of a particular plane, the images are free of object-induced phase distortions. This apparatus has the distinctive feature that it may be used to superimpose images of two objects in a manner that could lead to useful effects and applications. We show that the apparatus works using either quantum-entangled or classically correlated light sources.