公开(公告)号：US20220113189A1

公开(公告)日：2022-04-14

申请号：US17428435

申请日：2020-01-20

Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION

Inventor： Sucbei MOON

IPC: G01J3/28 ,  G01J3/44 ,  G01J3/10

Abstract: The present invention provides a time-resolved single-photon counting apparatus, including an excitation light source for generating pulsed excitation light, a specimen optics for collecting an optical signal caused by irradiating the pulsed excitation light to a specimen, a photoelectric converter for photoelectrically converting the optical signal to generate an analog single-photon signal, an analog-to-digital (AD) signal converter for sampling the analog single-photon signal to convert the same into a digital single-photon signal, a digital photon-discrimination and timing detector for generating a photon-discrimination signal by discriminating the single-photon property of the digital single-photon signal to count a pulse time point of the digital single-photon signal to generate a delay time signal having delay time information, and a time-signal processor for counting valid single-photon detection events according to the delay time with reference to the photon-discrimination signal.