Toward real-time quantum imaging with a single pixel camera

TL;DR

This paper demonstrates a real-time quantum imaging setup using a single pixel camera that measures quantum noise reduction in multi-spatial-mode twin beams, enabling low-light imaging below shot noise.

Contribution

It introduces a novel workbench for real-time quantum imaging utilizing spatial light modulators and twin beams for quantum noise reduction measurement.

Findings

Successful measurement of quantum noise reduction frame-by-frame

Use of spatial light modulators to select correlated modes

Potential for compressive quantum imaging below shot noise

Abstract

We present a workbench for the study of real-time quantum imaging by measuring the frame-by-frame quantum noise reduction of multi-spatial-mode twin beams generated by four wave mixing in Rb vapor. Exploiting the multiple spatial modes of this squeezed light source, we utilize spatial light modulators to selectively pass macropixels of quantum correlated modes from each of the twin beams to a high quantum efficiency balanced detector. In low-light-level imaging applications, the ability to measure the quantum correlations between individual spatial modes and macropixels of spatial modes with a single pixel camera will facilitate compressive quantum imaging with sensitivity below the photon shot noise limit.