Single photon sources for quantum radiometry: a brief review about the current 
state‑of‑the‑art

Kück, Stefan; López, Marco; Hofer, Helmuth; Georgieva, Hristina; Christinck, Justus; Rodiek, Beatrice; Porrovecchio, Geiland; Smid, Marek; Götzinger, Stephan; Becher, Christoph; Fuchs, Philipp; Lombardi, Pietro; Toninelli, Costanza; Trapuzzano, Marco; Colautti, Maja; Margheri, Giancarlo; Degiovanni, Ivo Pietro; Traina, Paolo; Rodt, Sven; Reitzenstein, Stephan

doi:10.1007/s00340-021-07734-2

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Single photon sources for quantum radiometry: a brief review about the current state‑of‑the‑art

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Götzinger, Stephan
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;
Department of Physics, Graduate School in Advanced Optical Technologies (SAOT), Friedrich Alexander University (FAU) Erlangen-Nürnberg, ;
Sandoghdar Division, Max-Planck-Zentrum für Physik und Medizin, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Kück, S., López, M., Hofer, H., Georgieva, H., Christinck, J., Rodiek, B., et al. (2022). Single photon sources for quantum radiometry: a brief review about the current state‑of‑the‑art. Applied Physics B: Lasers and Optics, 128: 28. doi:10.1007/s00340-021-07734-2.

Cite as: https://hdl.handle.net/21.11116/0000-0009-E19A-B

Abstract

Single-photon sources have a variety of applications. One of these is quantum radiometry, which is reported on in this paper in the form of an overview, specifically of the current state of the art in the application of deterministic single photon sources to the calibration of single photon detectors. To optimize single-photon sources for this purpose, extensive research is currently carried out at the European National Metrology Institutes (NMIs), in collaboration with partners from universities. Single-photon sources of different types are currently under investigation, including sources based on defect centres in (nano-)diamonds, on molecules and on semiconductor quantum dots. We will present, summarise, and compare the current results obtained at European NMIs for single-photon sources in terms of photon flux, single-photon purity, and spectral power distribution as well as the results of single-photon detector calibrations carried out with this type of light sources.