Presentation 2021-08-06
High light absorption efficiency design by FDTD simulation in superconducting nanostrip photon detector
Mai Nishikawa, Kouhei Sawai, Hiroyuki Shibata,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) An optical simulation using the finite differential time domain (FDTD) method was performed to improve the detection efficiency and the light absorption efficiency of the superconducting nanostrip single photon detector (SSPD). The optimum structure of SSPD in a simple Au cavity structure is designed to improve the light absorption efficiency. For the superconducting thin film, we used NbN which has been commonly used, and MoN which has the 100% internal quantum efficiency. The light absorption efficiency of 97.5% was obtained for MoN-SSPD with a cavity structure on the sapphire substrate.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) SSPD / SNSPD / FDTD / Superconducting nanowire single photon detector
Paper # SCE2021-2
Date of Issue 2021-07-30 (SCE)

Conference Information
Committee SCE
Conference Date 2021/8/6(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yoshio Mizugaki(Univ. of Electro-Comm.)
Vice Chair
Secretary (AIST)
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) High light absorption efficiency design by FDTD simulation in superconducting nanostrip photon detector
Sub Title (in English)
Keyword(1) SSPD
Keyword(2) SNSPD
Keyword(3) FDTD
Keyword(4) Superconducting nanowire single photon detector
1st Author's Name Mai Nishikawa
1st Author's Affiliation Kitami Institute of Technology(Kitami IT)
2nd Author's Name Kouhei Sawai
2nd Author's Affiliation Kitami Institute of Technology(Kitami IT)
3rd Author's Name Hiroyuki Shibata
3rd Author's Affiliation Kitami Institute of Technology(Kitami IT)
Date 2021-08-06
Paper # SCE2021-2
Volume (vol) vol.121
Number (no) SCE-137
Page pp.pp.5-9(SCE),
#Pages 5
Date of Issue 2021-07-30 (SCE)