Superconducting single-photon detection structure and preparation method thereof

A single-photon detection and superconducting technology, applied in the field of single-photon detection, can solve the problems of not having the ability to apply large-area array imaging, complexity, and lack of large-area array readout technology, and achieve good promotion and application prospects and simple processing , the effect of increasing business value

CN113937115APending Publication Date: 2022-01-14CHINA ACADEMY OF SPACE TECHNOLOGY
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-01-14

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of single-photon detection, and provides a superconducting single-photon detection structure and a preparation method thereof. The structure comprises a plurality of detection units, a transmission feeder line, a power line, a first coplanar waveguide, a second coplanar waveguide and a third coplanar waveguide; the plurality of detection units are separated by the power line to form a resonator array, and the power line is connected with the ground end of each detection unit; each detection unit comprises a nanowire with a snakelike structure and an interdigital capacitor; the resonant frequency of the corresponding detection unit is determined according to the length of the interdigital capacitor; the transmission feeder line is coupled with each detection unit and is used for reading out the frequency domain of the resonator array; and the first coplanar waveguide is connected with the first end of the power line, the second coplanar waveguide is connected with the second end of the transmission feeder line, and the third coplanar waveguide is connected with the first end of the transmission feeder line. According to the invention, the resonant frequency range of each resonator is increased, the resonant frequency of the resonators is improved, the complexity of the reading circuit is simplified, and the practicability is high.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of single-photon detection, in particular to a superconducting single-photon detection structure and a preparation method thereof. Background technique

[0002] Light is one of the main carriers of information closely related to human daily life activities. Converting light into electrical signals is crucial to understanding its intrinsic properties and making better use of it. With the extreme demand for the detection of a large number of faint targets, such as distant celestial object observation, long-distance laser ranging, bioluminescence analysis, etc., the limit of light detection has been pushed to the level of a single photon.

[0003] The energy gap of superconductors is on the order of meV, which is 3 orders of magnitude lower than that of traditional semiconductor materials, and they work in a cryogenic environment. Therefore, single photon detectors based on superconductors have unparalleled ad...

Examples

Embodiment Construction

[0047] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details.

[0048] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0049] see figure 1 , is a schematic diagram of the superconducting single-photon detection structure provided in this embodiment. The present invention is applicable to the field of photoelectric detection, large area array imaging, radar and astronomical observation, and is especially suitable for the extreme detection requirements of faint targets, such as distant celestial bodies Observation, long-distance laser ranging and bioluminescent analysis. For ea...