Optical readout for thermal detector array

    公开(公告)号:US12209912B2

    公开(公告)日:2025-01-28

    申请号:US17747443

    申请日:2022-05-18

    Abstract: Embodiments of the present invention relate to an optical detector system capable of detecting in the infrared and terahertz regions of the electromagnetic spectrum with increased sensitivity and simplicity. It includes microbolometers in an array, a waveguide for receiving readout light input from an optical light source, waveguide splitters for splitting the waveguide to output waveguides such that each microbolometer in the array is optically coupled to an output waveguide. The output waveguide is coupled to an optical resonator of the microbolometer at a resonance frequency to generate a readout light output having a characteristic based on a change in a characteristic of the optical resonator. The system further includes a detector for receiving the readout light output from each of the output waveguides to convert the readout light output to an electrical signal.

    SUPERCONDUCTING OPTO-ELECTRONIC TRANSMITTER CIRCUIT

    公开(公告)号:US20240403622A1

    公开(公告)日:2024-12-05

    申请号:US18203845

    申请日:2023-05-31

    Abstract: Embodiments of the present invention related to a neuromimetic circuit including a transmitter circuit to receive the threshold signal from a superconducting optoelectronic neuron and convert the small current pulse to a voltage pulse sufficient to produce light from a semiconductor diode. This light is the signal used to communicate between neurons in the network. The transmitter circuit in accordance with the present invention includes an amplifier chain that comprises two Josephson junctions, a superconducting thin-film current-gated current amplifier, and a superconducting thin-film current-gated voltage amplifier. The transmitter circuit in accordance with the present invention enable an amplification sequence that allows neuronal firing of about 20 MHz with power density sufficiently low to be cooled with standard 4He cryogenic systems operating at 4.2 K.

    Superconducting Switch
    6.
    发明公开

    公开(公告)号:US20240260484A1

    公开(公告)日:2024-08-01

    申请号:US18632077

    申请日:2024-04-10

    CPC classification number: H10N60/30 H01F6/04 H10N60/84

    Abstract: An example electric circuit includes a superconductor component having a first terminal at a first end and a second terminal at a second end. The superconductor component includes a first portion coupled to the first terminal, a second portion coupled to the second terminal, and a third portion coupling the first portion and the second portion. The third portion has a curved shape such that the first portion of the superconductor component is proximate to, and thermally coupled to, the second portion of the superconductor component. The example electric circuit further includes a coupling component coupled to the third portion of the superconductor component, and a gate component configured to generate a resistive heat that exceeds a superconducting threshold temperature of the superconductor component, where the gate component is separated from the superconductor component by the coupling component.

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