Presentation 2020-11-26
Evaluation of 16 element superconducting nanostrip single photon detector
Shigehito Miki, Shigeyuki Miyajima, Masahiro Yabuno, Fumihiro China, Hirotaka Terai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The characteristics of the 16-element superconducting nanostrip single photon detector (SSPD) was evaluated with the aim of improving the response speed. The 16-element SSPD was designed and fabricated so that 16 NbTiN nanostrips with a line width of 100 nm are arranged in an interleaved structure with a photo sensitive area of 15 um × 15 um square. As result of evaluation of the photon response characteristics by mounting in a package that can realize high-efficiency photocoupling and, single photon response was observed in all 16 elements, and the total system detection efficiency at a wavelength of 1550 nm was confirmed to be 75.9%. In addition, high speed operation characteristic was also evaluated by mounting a 16-element SSPD and SFQ merger circuit in a cryocooler and photons with a time interval of 1 nsec, which was much shorter than the dead time of SSPD, was able be separately observed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) superconducting nanostrip single photon detector / single flux quantum circuit
Paper # SCE2020-16
Date of Issue 2020-11-18 (SCE)

Conference Information
Committee SCE
Conference Date 2020/11/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online conference
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Satoshi Kohjiro(AIST)
Vice Chair
Secretary (NICT)
Assistant Hiroyuki Akaike(Daido Univ.)

Paper Information
Registration To Technical Committee on Superconductive Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Evaluation of 16 element superconducting nanostrip single photon detector
Sub Title (in English)
Keyword(1) superconducting nanostrip single photon detector
Keyword(2) single flux quantum circuit
1st Author's Name Shigehito Miki
1st Author's Affiliation National Institute of Information and Communications Technology(NICT)
2nd Author's Name Shigeyuki Miyajima
2nd Author's Affiliation National Institute of Information and Communications Technology(NICT)
3rd Author's Name Masahiro Yabuno
3rd Author's Affiliation National Institute of Information and Communications Technology(NICT)
4th Author's Name Fumihiro China
4th Author's Affiliation National Institute of Information and Communications Technology(NICT)
5th Author's Name Hirotaka Terai
5th Author's Affiliation National Institute of Information and Communications Technology(NICT)
Date 2020-11-26
Paper # SCE2020-16
Volume (vol) vol.120
Number (no) SCE-251
Page pp.pp.39-41(SCE),
#Pages 3
Date of Issue 2020-11-18 (SCE)