Presentation 2013-10-03
High detection efficiency superconducting nanowire single-photon detector with low filling factor
Taro YAMASHITA, Shigehito MIKI, Hirotaka TERAI, Zhen WANG,
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Abstract(in English) We present a numerical simulation of the optical absorptance for the superconducting nanowire single-photon detectors (SSPDs) designed with various layouts by using finite-element analysis software. The simulation results reveal that the electric field concentrated in the superconducting nanowire is enhanced by reducing the filling factor, and the degree of the enhancement becomes larger for thicker nanowires. Due to the large enhancement of the electric field in the nanowire with a double-side cavity structure, the high optical absorptance can be achieved even for the low-filling-factor layout by tuning the device design, which leads to the realization of SSPDs with high system detection efficiency and high counting rate.
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Keyword(in English) Single photon detector / superconducting nanowire / thin film / numerical simulation
Paper # SCE2013-29
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Committee SCE
Conference Date 2013/9/25(1days)
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Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High detection efficiency superconducting nanowire single-photon detector with low filling factor
Sub Title (in English)
Keyword(1) Single photon detector
Keyword(2) superconducting nanowire
Keyword(3) thin film
Keyword(4) numerical simulation
1st Author's Name Taro YAMASHITA
1st Author's Affiliation National Institute of Information and Communications Technology()
2nd Author's Name Shigehito MIKI
2nd Author's Affiliation National Institute of Information and Communications Technology
3rd Author's Name Hirotaka TERAI
3rd Author's Affiliation National Institute of Information and Communications Technology
4th Author's Name Zhen WANG
4th Author's Affiliation National Institute of Information and Communications Technology:Shanghai Institute of Microsystem and Information Technology,Chinese Academjy of Sciences
Date 2013-10-03
Paper # SCE2013-29
Volume (vol) vol.113
Number (no) 232
Page pp.pp.-
#Pages 6
Date of Issue