Ghost imaging with a single detector

TL;DR

This paper demonstrates ghost imaging and diffraction using a single detector by computationally replacing the reference beam detector, providing evidence that ghost imaging does not depend on quantum correlations and showing its depth-resolving ability.

Contribution

The study experimentally verifies a single-detector ghost imaging method based on computational propagation, challenging the notion of quantum non-locality in ghost imaging.

Findings

Successful ghost imaging with one detector

Depth-resolving capability demonstrated

Evidence against quantum non-locality in ghost imaging

Abstract

We experimentally demonstrate pseudothermal ghost imaging and ghost diffraction using only a single single-pixel detector. We achieve this by replacing the high resolution detector of the reference beam with a computation of the propagating field, following a recent proposal by Shapiro [J. H. Shapiro, arXiv:0807.2614 (2008)]. Since only a single detector is used, this provides an experimental evidence that pseudothermal ghost imaging does not rely on non-local quantum correlations. In addition, we show the depth-resolving capability of this ghost imaging technique.