| Zugriffsnummer | 52214 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Metrological characterization of a commercial single-photon source with high photon flux emission |
| Autor(in); Institution |
Stepanov, Petr; Quandela SAS, Massy, FRANCE
Sewidan, Leonora; 4.5, Angewandte Radiometrie, PTB-Braunschweig
Pishchagin, Anton; Quandela SAS, Massy, FRANCE
López, Marco; 4.5, Angewandte Radiometrie, PTB-Braunschweig
|
| Quelle/Jahr | Metrologia: 61 (2024), 5, 1 - 9 |
| Artikelnummer | 054001 |
| ISSN | 0026-1394 (print) ; 1681-7575 (online) |
| DOI | |
| Verlag | Bristol: IOP Publishing |
| Freie Schlagworte | quantum radiometry ; single-photon source ; photon flux ; calibration ; optical power |
| Zusammenfassung | We present a comprehensive metrological characterization of a commercial single-photon source with high photon flux emission for use in radiometry. The source is based on an InGaAs quantum dot in a micropillar. A comparative analysis of two excitation schemes-phonon-assisted excitation and two-photon excitation-explores differences in excitation power dependence, temporal stability and single-photon purity. The commercial source exhibits excellent properties for the field of quantum radiometry, achieving simultaneously a photon flux of (17.19 ± 0.09) million photons/s for a pulse repetition rate of 79.4 MHz, and a single-photon purity of 98%. Its optical power of (3.68 ± 0.02) pW is directly determined with a traceably calibrated low-noise photodiode. The ability to directly compare the photocurrent in a low-noise photodiode with the count rate at a single-photon avalanche detector allows for a seamless transition between the classical and quantum realizations of optical power. Therefore, we were able to build another bridge between classical and quantum radiometry by using a deterministic single-photon source. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Forschungsprojekt | Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy—EXC-2123 QuantumFrontiers—390837967. This work is also funded by the projects EMPIR 20FUN05 SEQUME and 20IND05 QADeT. These projects received funding from the EMPIR program co-financed by the Participating States and from the European Union Horizon 2020 research and innovation program. |
| Förderinformationen (1) |
Förderername: Deutsche Forschungsgemeinschaft (DFG)
Förderer ID: 0000 0001 2096 9829 Förderer ID Typ: ISNI Förderprogramm: Germany's Excellence Strategy-EXC-2123 QuantumFrontiers Förderungsnummer: 390837967 |
| Förderinformationen (2) |
Förderername: European Commission (EC)
Förderer ID: 0000 0001 2242 8989 Förderer ID Typ: ISNI Förderprogramm: EMPIR 2020 Fundamental Titel der Förderung: 20FUN05: SEQUME: Single- and entangled photon sources for quantum metrology Förderungsnummer: 20FUN05 |
| Förderinformationen (3) |
Förderername: European Commission (EC)
Förderer ID: 0000 0001 2242 8989 Förderer ID Typ: ISNI Förderprogramm: EMPIR 2020 Industry Titel der Förderung: 20IND05: QADeT: Quantum sensors for metrology based on single-atom-like device technology Förderungsnummer: 20IND05 |