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A high time resolution single photon detection method and single photon detection system

A single-photon detection, time-resolved technology, applied in the field of transient photons, can solve the problem of low time-resolution accuracy, achieve high photon counting measurement accuracy, improve time measurement accuracy, and meet the needs of photon detection accuracy.

Active Publication Date: 2021-10-12
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the low time resolution accuracy of single photon detectors in the prior art, and provide a high time resolution single photon detection method and single photon detection system

Method used

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  • A high time resolution single photon detection method and single photon detection system
  • A high time resolution single photon detection method and single photon detection system
  • A high time resolution single photon detection method and single photon detection system

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing and specific embodiment content of the present invention is described in further detail:

[0039] Such as figure 1 As shown, a single photon detection system includes an input optical unit 1 , a single photon deflection unit 2 , a synchronous scanning circuit 3 , a driving circuit 4 and a readout unit 5 .

[0040] Wherein, the input optical unit 1 includes a slit and a lens assembly 12 sequentially arranged along the incident direction of photons.

[0041] The single-photon deflection unit 2 includes a photocathode 21, an accelerating electrode 22, a focusing electrode 23, a deflection electrode 24, an MCP multiplier 25, and a position-sensitive anode 26 arranged in sequence along the photon incident direction;

[0042] The synchronous scanning circuit 3 adopts the existing low-jitter synchronous scanning circuit 3, which is used to generate a synchronous scanning deflection voltage with characteristics of synchronous trig...

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Abstract

The invention provides a high-time-resolution single-photon detection method and a single-photon detection system, which solves the problem of low time-resolution precision of single-photon detectors in the prior art. The invention extracts the one-dimensional photon information of the photon event to be measured, and converts the time information of the photon event to be measured into spatial information, thereby eliminating the influence of the time dispersion of the electron multiplication process on the time resolution of the detector, and improving the time measurement accuracy.

Description

technical field [0001] The invention belongs to the field of transient photon technology, relates to a transient photon detection technology, in particular to a high time resolution single photon detection method and a single photon detection system. Background technique [0002] Single-photon detectors are ultra-low-noise devices whose enhanced sensitivity enables them to detect and count individual photons. Time correlated single photon counting (TCSPC) is a photon arrival time measurement technology, due to its high sensitivity, high time resolution, digital output data and other advantages, it is widely used in physics, chemistry, biology and other fields. It has been widely used, and has become the mainstream research method of fluorescence lifetime imaging and single-molecule fluorescence spectroscopy, and has obtained important applications in diffusion optical tomography, fluorescence correlation spectroscopy, and time-resolved fluorescence microscopy. [0003] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J11/00
CPCG01J11/00
Inventor 朱炳利白永林曹伟伟徐鹏杨阳白晓红王博秦君军陈震
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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