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This page is still in progress.Imaging with quantum states of light. P. Moreau, E. Toninelli, T. Gregory and M. J. Padgett in Nature Rev. Phys. 1:367 (2019).  What the paper says!?
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This is an excellent review on single-photon imaging, with a good description of the various camera technologies.

There is a strong focus on SPDC source.

According to the Authors, the quantum correlations motivated imaging:

The availability of such a state and the simplicity of its generation — which requires only a nonlinear crystal to be pumped with a laser — initiated the development of new types of imaging experiments. Through these experiments emerged the field of quantum imaging.

They credit Jost et al.[1] with the first study of spatial quantum correlations:

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References

  1. Spatial correlations of spontaneously down-converted photon pairs detected with a single-photon-sensitive CCD camera. B. Jost, A. Sergienko, A. Abouraddy, B. Saleh and M. Teich in Opt. Express 3:81 (1998).