Probing the hotspot interaction length in NbN nanowire superconducting single photon detectors
We measure the maximal distance at which two absorbed photons can jointly trigger a detection event in NbN nanowire superconducting single photon detector microbridges by comparing the one-photon and two-photon efficiencies of bridges of different overall lengths, from 0 to 400 nm. We find a length...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Published: |
AIP Publishing
2017
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| _version_ | 1797066407971651584 |
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| author | Renema, J Gaudio, R Wang, Q Gaggero, A Mattioli, F Leoni, R van Exter, M Fiore, A de Dood, M |
| author_facet | Renema, J Gaudio, R Wang, Q Gaggero, A Mattioli, F Leoni, R van Exter, M Fiore, A de Dood, M |
| author_sort | Renema, J |
| collection | OXFORD |
| description | We measure the maximal distance at which two absorbed photons can jointly trigger a detection event in NbN nanowire superconducting single photon detector microbridges by comparing the one-photon and two-photon efficiencies of bridges of different overall lengths, from 0 to 400 nm. We find a length of 23 ± 2 nm. This value is in good agreement with the size of the quasiparticle cloud at the time of the detection event. |
| first_indexed | 2024-03-06T21:41:37Z |
| format | Journal article |
| id | oxford-uuid:4820f3e0-c680-406a-937f-d3175da3b4aa |
| institution | University of Oxford |
| last_indexed | 2024-03-06T21:41:37Z |
| publishDate | 2017 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:4820f3e0-c680-406a-937f-d3175da3b4aa2022-03-26T15:23:53ZProbing the hotspot interaction length in NbN nanowire superconducting single photon detectorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4820f3e0-c680-406a-937f-d3175da3b4aaSymplectic Elements at OxfordAIP Publishing2017Renema, JGaudio, RWang, QGaggero, AMattioli, FLeoni, Rvan Exter, MFiore, Ade Dood, MWe measure the maximal distance at which two absorbed photons can jointly trigger a detection event in NbN nanowire superconducting single photon detector microbridges by comparing the one-photon and two-photon efficiencies of bridges of different overall lengths, from 0 to 400 nm. We find a length of 23 ± 2 nm. This value is in good agreement with the size of the quasiparticle cloud at the time of the detection event. |
| spellingShingle | Renema, J Gaudio, R Wang, Q Gaggero, A Mattioli, F Leoni, R van Exter, M Fiore, A de Dood, M Probing the hotspot interaction length in NbN nanowire superconducting single photon detectors |
| title | Probing the hotspot interaction length in NbN nanowire superconducting
single photon detectors |
| title_full | Probing the hotspot interaction length in NbN nanowire superconducting
single photon detectors |
| title_fullStr | Probing the hotspot interaction length in NbN nanowire superconducting
single photon detectors |
| title_full_unstemmed | Probing the hotspot interaction length in NbN nanowire superconducting
single photon detectors |
| title_short | Probing the hotspot interaction length in NbN nanowire superconducting
single photon detectors |
| title_sort | probing the hotspot interaction length in nbn nanowire superconducting single photon detectors |
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