Superconducting photon detector
    265.
    发明授权

    公开(公告)号:US12061114B2

    公开(公告)日:2024-08-13

    申请号:US17967773

    申请日:2022-10-17

    Abstract: The various embodiments described herein include methods, devices, and systems for fabricating and operating superconducting photon detectors. In one aspect, a photon detector includes: (1) a first waveguide configured to guide photons from a photon source; (2) a second waveguide that is distinct and separate from the first waveguide and optically-coupled to the first waveguide; and (3) a superconducting component positioned adjacent to the second waveguide and configured to detect photons within the second waveguide.

    COMPACT WIDE FIELD IMAGER FOR LASER DETECTION
    267.
    发明公开

    公开(公告)号:US20230296432A1

    公开(公告)日:2023-09-21

    申请号:US18200707

    申请日:2023-05-23

    Applicant: Marek Kowarz

    Inventor: Marek Kowarz

    Abstract: An apparatus for characterization of one or more light sources over a field of view has an image relay disposed to relay a first image plane to a second image plane. An aperture defines the field of view at the first image plane. A diffraction grating in the path of light through the aperture is configured to form, on the first image plane, for at least one light source, a light pattern having at least two diffraction orders of light from the corresponding light source. An image sensor array is configured to provide image data from the light pattern at the second image plane.

    Photon Number Resolving Superconducting Detector

    公开(公告)号:US20230175887A1

    公开(公告)日:2023-06-08

    申请号:US18103413

    申请日:2023-01-30

    CPC classification number: G01J1/44 G01J1/0407 G01J2001/4446

    Abstract: A method of resolving a number of photons received by a photon detector includes optically coupling a waveguide to a superconducting wire having alternating narrow and wide portions; electrically coupling the superconducting wire to a current source; and electrically coupling an electrical contact in parallel with the superconducting wire. The electrical contact has a resistance less than a resistance of the superconducting wire while at least one narrow portion of the superconducting wire is in a non-superconducting state. The method includes providing to the superconducting wire, from the current source, a current configured to maintain the superconducting wire in a superconducting state in the absence of incident photons; receiving one or more photons via the waveguide; measuring an electrical property of the superconducting wire, proportional to a number of photons incident on the superconducting wire; and determining the number of received photons based on the electrical property.

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