Second-order Cumulants Ghost Imaging

TL;DR

This paper introduces Second-order Cumulants ghost imaging (SCGI), a novel method that improves resolution by correlating intensity fluctuations at two detectors, with experimental results aligning with theory.

Contribution

The paper presents a new ghost imaging protocol using second-order cumulants that enhances resolution over conventional methods.

Findings

SCGI achieves higher resolution than conventional ghost imaging.

Experimental results confirm the theoretical predictions.

Correlating intensity fluctuations at two detectors is effective for image retrieval.

Abstract

In the conventional ghost imaging (GI), the image is retrieved by correlating the reference intensity fluctuation at a charge-coupled device (CCD) with the signal intensity fluctuation at a bucket detector. In this letter, we present the protocol of GI, it is called Second-order Cumulants ghost imaging (SCGI). The image is retrieved by the fluctuation information of correlating intensity fluctuation at two detectors, and the resolution limit can be enhanced than conventional GI. The experimental results of SCGI agreement with theoretical results.