  Despite advances in low-light level detection, single-photon methods such as
photon correlation have rarely been used in the context of imaging. The few
demonstrations, for example of sub-diffraction limited imaging utilizing
quantum statistics of photons, have remained in the realm of proof-of-principle
demonstrations. This is primarily due to a combination of low values of fill
factors, quantum efficiencies, frame rates and signal-to-noise characteristic
of most available single-photon sensitive imaging detectors. Here we describe
an imaging device based on a fiber bundle coupled to single-photon avalanche
detectors, which combines a large fill factor, a high quantum efficiency, a low
noise and scalable architecture. Our device enables localization based
super-resolution microscopy in a non-sparse non-stationary scene, utilizing
information on the number of active emitters, as gathered from non-classical
photon statistics.
