Title:
SIGNAL PROCESSING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2017/138306
Kind Code:
A1
Abstract:
A signal processing circuit which is configured from a superconducting digital logic circuit and is to be used in the processing of a detection signal outputted from a plurality of superconducting single photon detectors (hereinafter, SSPDs), the signal processing circuit being equipped with: a plurality of transmission paths which are connected, respectively, to the plurality of SSPDs; a branching unit for causing each of the transmission paths to branch into a first transmission path and a second transmission path; a time information generation circuit connected to the first transmission paths; and an address information generation circuit connected to the second transmission paths. Therein, the time information generation circuit outputs a time information signal for identifying the time at which the photon is incident on the plurality of SSPDs, on the basis of the detection signals outputted by the SSPDs, and the address information generation circuit outputs an address information signal for identifying the SSPD on which the photon is incident from among the plurality of SSPDs.
Inventors:
MIKI SHIGEHITO
TERAI HIROTAKA
YAMASHITA TARO
MIYAJIMA SHIGEYUKI
TERAI HIROTAKA
YAMASHITA TARO
MIYAJIMA SHIGEYUKI
Application Number:
PCT/JP2017/001273
Publication Date:
August 17, 2017
Filing Date:
January 16, 2017
Export Citation:
Assignee:
NAT INST INF & COMM TECH (JP)
International Classes:
G01J1/44; G01J1/02; H01L39/00; H01L39/22; H03K19/195
Foreign References:
| JP2009232311A | 2009-10-08 | |||
| JP2013019777A | 2013-01-31 | |||
| JP2005257453A | 2005-09-22 | |||
| US20150355019A1 | 2015-12-10 | |||
| US20160003672A1 | 2016-01-07 |
Other References:
M. S. ALLMAN ET AL.: "A near-infrared 64-pixel superconducting nanowire single photon detector array with integrated multiplexed readout", APPL. PHYS. LETT., vol. 106, 2015, pages 192601, XP012197475
ADAM MCCAUGHAN ET AL.: "Superconducting- nanowire single-photon-detector linear array", APPL. PHYS. LETT., vol. 103, 2013, pages 142602, XP012175489
JOSEPH C. BARDIN ET AL.: "Cryogenic SiGe Integrated Circuits for Superconducting Nanowire Single Photon Detector Readout", P ROC. OF SPIE, vol. 9114, 2014, pages 911404, XP060037744
See also references of EP 3415880A4
ADAM MCCAUGHAN ET AL.: "Superconducting- nanowire single-photon-detector linear array", APPL. PHYS. LETT., vol. 103, 2013, pages 142602, XP012175489
JOSEPH C. BARDIN ET AL.: "Cryogenic SiGe Integrated Circuits for Superconducting Nanowire Single Photon Detector Readout", P ROC. OF SPIE, vol. 9114, 2014, pages 911404, XP060037744
See also references of EP 3415880A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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