| Zugriffsnummer | 21706 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Intrinsic quantum efficiency and electro-thermal model of a superconducting nanowire single-photon detector |
| Autor(in); Institution |
Semenov, Alexei; German Aerospace Center, Institute of Planetary Research, Berlin, GERMANY
Haas, Philipp; German Aerospace Center, Institute of Planetary Research, Berlin, GERMANY
Hübers, Heinz-Wilhelm; German Aerospace Center, Institute of Planetary Research, Berlin, GERMANY
Ilin, Konstantin; Institute of Micro- and Nanosystems, University of Karlsruhe, Karlsruhe, GERMANY
Siegel, Michael; Institute of Micro- and Nanosystems, University of Karlsruhe, Karlsruhe, GERMANY
Kirste, Alexander; 7.5, Tieftemperaturthermodynamik und -technologie, PTB-Berlin
Drung, Dietmar; 7.5, Tieftemperaturthermodynamik und -technologie, PTB-Berlin
Schurig, Thomas; 7.5, Tieftemperaturthermodynamik und -technologie, PTB-Berlin
Engel, Andreas; Physics Institute, University of Zurich, Zurich, SWITZERLAND
|
| Quelle/Jahr | Journal of Modern Optics: 56 (2009), 2-3, 345 - 351 |
| ISSN | 0950-0340 (PRINT) ; 1362-3044 (ONLINE) |
| DOI | |
| Verlag | Abingdon: Taylor & Francis |
| Freie Schlagworte | nanowire single-photon detectors ; quantum efficiency ; electro-thermal normal domain |
| Zusammenfassung | Superconducting single-photon detectors from thin niobium nitride nanostrips exhibit a cut-off of the wavelength-independent quantum efficiency along with a moderate energy resolution in the near-infrared spectral range. Before the cut-off, the intrinsic quantum efficiency of the detector reaches ≈30% from the ultimate value that is physically limited to the absorbance of the detector structure. The intrinsic quantum efficiency is most likely controlled by non-homogeneities of the niobium nitride films. We developed the electro-thermal model of the detector response that allowed us to optimize the SQUID-based readout and to achieve in the temperature range from 1 to 6 K the photon count rate 3 × 107s-1 and a dark count rate less than 10-4s-1. |
Zitierung
Semenov, A., Haas, P., Hübers, H.-W., Ilin, K., Siegel, M., Kirste, A., Drung, D., Schurig, T., & Engel, A. (2009). Intrinsic quantum efficiency and electro-thermal model of a superconducting nanowire single-photon detector. Journal of Modern Optics, 56(2-3), 345–351. https://doi.org/10.1080/09500340802578589