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Article Abstract
Faint-light imaging plays an important role in applications including fluorescence-lifetime microscopy and remote sensing. Superconducting nanowire single-photon detectors (SNSPDs) outperform other single-photon detectors in terms of comprehensive performance, however, large-format SNSPD imagers with many pixels remain an outstanding technological challenge. Here, as an alternative route, we use a multimode-fiber-coupled fractal SNSPD as the light-sensing element to perform three-dimensional single-pixel imaging at the wavelength of 1560 nm. We demonstrate a depth resolution of less than 6 mm with image resolution of 64 × 64 pixels. By further using a compressive-sensing scheme, the system is capable of reconstructing images with a resolution of 128 × 128 pixels and a maximum photon count per pixel fewer than 1.
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| http://dx.doi.org/10.1364/OE.536667 | DOI Listing |
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