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- W4380591097 abstract "Imaging in a broad light-intensity regime with a high signal-to-noise ratio is a key capability in fields as diverse as quantum metrology and astronomy. Achieving high signal-to-noise ratios in quantum imaging leads to surpassing the classical limit in parameter estimation. In astronomical detection, the search for habitable exoplanets demands imaging of atmospheres in the infrared to look for biosignatures. These optical applications are hampered by detection noise, which critically limits their potential, and thus demands photon-number and spatial-resolution detectors. Here we report an imaging device in the infrared wavelength range able to arbitrarily reduce the readout noise. We built a measured exposure skipper-CCD sensor instrument equipped with a thick back-illuminated sensor, with photon-number-resolving capability in a wide dynamic range, spatial resolution, high quantum efficiency in the near-infrared and ultralow dark counts. This device allows us to image objects in a broad range of intensities within the same frame and, by reducing the readout noise to less than 0.2e${}^{ensuremath{-}}$, to distinguish even those shapes with less than two photons per pixel, unveiling what was previously hidden in the noise. These results pave the way for building high-standard infrared imagers based on skipper CCDs." @default.
- W4380591097 created "2023-06-15" @default.
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- W4380591097 date "2023-06-14" @default.
- W4380591097 modified "2023-10-06" @default.
- W4380591097 title "Infrared Photon-Number-Resolving Imager Using a Skipper Charge-Coupled Device" @default.
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- W4380591097 doi "https://doi.org/10.1103/physrevapplied.19.064044" @default.
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