| Presentation | 2009-07-21 Development of optical cavity embedded super conducting nanowire single photon detectors Shigehito MIKI, Masanori TAKEDA, Mikio FUJIWARA, Masahide SASAKI, Zhen WANG, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We report on the development of optical cavity embedded superconducting nanowire single photon detectors (OC-SNSPDs) with compact fiber coupled packaging technique. OC-SNSPD consists of Au mirror, SiO cavity and NbN nanowire on MgO substrate and anti reflection (AR) layer. To achieve efficient coupling, the thickness of MgO substrate was reduced down to 45μm by mechanical polishing, and installed into compact package blocks. From the system DE measurement at different substrate thickness and simple estimation of Gaussian beam profile, we can confirm ～98% of input light beam could irradiated into 15×15μm^2 nanowire area from back side of substrate without any lens system. An NbN OC-SNSPD achieved system DE of 9.5% at 1550nm and 25% at 1310nm wavelength, respectively at dark count rate of 100c/s. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Superconducting nanowire / superconducting ultrathin films / single photon detection / optical cavity |
| Paper # | SCE2009-16 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2009/7/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of optical cavity embedded super conducting nanowire single photon detectors |
| Sub Title (in English) | |
| Keyword(1) | Superconducting nanowire |
| Keyword(2) | superconducting ultrathin films |
| Keyword(3) | single photon detection |
| Keyword(4) | optical cavity |
| 1st Author's Name | Shigehito MIKI |
| 1st Author's Affiliation | Kobe Advanced Research Center, National Institute of Information and Communications Technology() |
| 2nd Author's Name | Masanori TAKEDA |
| 2nd Author's Affiliation | National Astronomical Observatory of Japan |
| 3rd Author's Name | Mikio FUJIWARA |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology |
| 4th Author's Name | Masahide SASAKI |
| 4th Author's Affiliation | National Institute of Information and Communications Technology |
| 5th Author's Name | Zhen WANG |
| 5th Author's Affiliation | Kobe Advanced Research Center, National Institute of Information and Communications Technology |
| Date | 2009-07-21 |
| Paper # | SCE2009-16 |
| Volume (vol) | vol.109 |
| Number (no) | 141 |
| Page | pp.pp.- |
| #Pages | 5 |
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