Erratum: Experimental demonstration of a predictable single photon source with variable photon flux (2017 <i>Metrologia</i> <b>54</b> 218–23)

Vaigu, Aigar; Porrovecchio, G.; Chu, Xiao‐Liu; Lindner, Sarah; Šmíd, Marek; Manninen, Albert; Sandoghdar, Vahid; Götzinger, Stephan; Ikonen, Erkki

doi:10.1088/1681-7575/aa7149

Cited by 2 publications

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“…These are, e.g., the colours centres based on Silicon [34][35][36][37], Germanium [38,39], Tin [40][41][42][43], Fluorine [44,45], Helium [46] impurities and Lead vacancy centre [47][48][49][50], see also the overview article from Moreva et al [51]. In [52], Vaigu et al successfully used a single-photon source based on a SiV-centre in nanodiamond with an emission bandwidth of Δλ FWHM ≈ 2 nm for the determination of the detection efficiency of a Si-SPAD detector, however, a direct calibration against a reference detector could not be carried out, because of the low photon rate of approx. 60 000 photons per second.…”

Section: The Nitrogen-vacancy Centre In Diamond As Single-photon Sourcementioning

confidence: 99%

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

et al. 2022

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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.

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Section: The Nitrogen-vacancy Centre In Diamond As Single-photon Sourcementioning

confidence: 99%

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

et al. 2022

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“…A much narrower bandwidth source (Δ FWHM ≈ 2 nm) is reported in ref. [13], based on a silicon-vacancy center. In this case though, a direct calibration could not be carried out because of the low photon rate (60 kphoton/s), associated to an overall efficiency of ≈ 0.1%.…”

Section: Introductionmentioning

confidence: 99%

A Molecule‐Based Single‐Photon Source Applied in Quantum Radiometry

et al. 2019

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Single‐photon sources (SPSs) based on quantum emitters hold promise in quantum radiometry as metrology standard for photon fluxes at the low light level. Ideally this requires control over the photon flux in a wide dynamic range, sub‐Poissonian photon statistics, and narrow‐band emission spectrum. In this work, a monochromatic SPS based on an organic dye molecule is presented, whose photon flux is traceably measured to be adjustable between 144 000 and 1320 000 photons per second at a wavelength of (785.6 ± 0.1) nm, corresponding to an optical radiant flux between 36.5 and 334 fW. The high purity of the single‐photon stream is verified, with a second‐order autocorrelation function at zero time delay below 0.1 throughout the whole range. Such molecule‐based SPS is hence used for the calibration of a single‐photon avalanche detector against a low‐noise analog photodiode traceable to the primary standard for optical radiant flux (i.e., the cryogenic radiometer). Due to the narrow bandwidth of the source, corrections to the detector efficiency arising from the spectral power distribution are negligible. With this major advantage, the developed device may finally realize a low‐photon‐flux standard source for quantum radiometry.

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Erratum: Experimental demonstration of a predictable single photon source with variable photon flux (2017 Metrologia 54 218–23)

Abstract: The total efficiency of the source (0.88 ± 0.04) × 10 −3 is given by the slope of the absolute photon flux (circle symbols, dashed line), while the slope for the APD count rate is (0.54 ± 0.02) × 10 −3 (cross symbols, solid line).

Cited by 2 publications

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

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

A Molecule‐Based Single‐Photon Source Applied in Quantum Radiometry

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