Superconducting nanowire single-photon detectors (SNSPDs) can potentially offer a route to true photon-counting detector arrays in the mid and far-infrared. This would result in an entirely new scientific camera, one that would find uses in a rich variety of fields, from biological imaging and remote sensing to large astronomy projects and dark matter detection.

Mid-infrared SNSPD array development requires three key advancements: single-photon sensitivity at long wavelengths, efficient coupling of infrared-photons to the detector and scalable multiplexed readout techniques to scale to large arrays. In this talk I will outline the progress made to date on each area, then discuss a variety of remaining challenges and our efforts to solve them.