Absolute meter of photodetector quantum efficiency based on the parametric down-conversion effect

Ginzburg, V. M.; Keratishvili, N. G.; Korzhenevich, Y. L.; Lunev, G. V.; Penin, A. N.; Sapritsky, Victor I.

doi:10.1117/12.147702

Cited by 18 publications

(3 citation statements)

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“…There is an alternative method of measuring quantum efficiency, which is absolute in the sense that it needs no reference sources or detectors. This method, based on the perfect pairwise correlation of photons produced by spontaneous parametric down-conversion (SPDC), 10,11,12,13,14,15,16,17,18,19 is usually referred to as the Klyshko method of absolute calibration. The key point of the method is measuring the rate of photocount coincidences for two detectors that register signal and idler radiation at the output of an unseeded nondegenerate optical parametric amplifier (NOPA).…”

Section: Klyshko Methods Of Qe Absolute Measurementmentioning

confidence: 99%

Comparative Test of Two Methods of Quantum Efficiency Absolute Measurement Based on Squeezed Vacuum Direct Detection

Agafonov

Chekhova

Penin

et al. 2011

Int. J. Quantum Inform.

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We realize and test in experiment a method recently proposed for measuring absolute quantum efficiency of analog photodetectors. Similar to the traditional (Klyshko) method of absolute calibration, the new one is based on the direct detection of two-mode squeezed vacuum at the output of a traveling wave OPA. However, in the new method, one measures the difference-photocurrent variance rather than the correlation function of photocurrents (number of coincidences), which makes the technique applicable for high-gain OPA. In this work we test the new method versus the traditional one for the case of photon-counting detectors where both techniques are valid

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Section: Klyshko Methods Of Qe Absolute Measurementmentioning

confidence: 99%

Comparative Test of Two Methods of Quantum Efficiency Absolute Measurement Based on Squeezed Vacuum Direct Detection

Agafonov

Chekhova

Penin

et al. 2011

Int. J. Quantum Inform.

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“…Prompted by the necessity of a precise calibration of photo-detectors both in the analog and photon-counting regime [1,2,3], we presented recently [4] a detailed theoretical analysis on the possibility to use the correlations of spontaneous parametric down conversion (SPDC) light [5,6] for calibrating analog detectors, as an extension of the technique developed in photon counting regime [7,8,9,10,11,12,13,14,15]. However, while the method is suitable for analog calibration at relatively low gain, which means a photon flux lower than 10 10 photon/s, in higher-gain regime it is limited by the difficulty of collecting the same correlated modes in the two branches [4].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the possibility of analog detectors calibration by exploiting Stimulated Parametric Down Conversion

Brida,

Chekhova,

Genovese

et al. 2008

Preprint

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Spontaneous parametric down conversion (SPDC) has been largely exploited as a tool for absolute calibration of photon-counting detectors, i.e detectors registering very small photon fluxes. In [4] we derived a method for absolute calibration of analog detectors using SPDC emission at higher photon fluxes, where the beam is seen as a continuum by the detector. Nevertheless intrinsic limitations appear when high-gain regime of SPDC is required to reach even larger photon fluxes. Here we show that stimulated parametric down conversion allow one to avoid this limitation, since stimulated photon fluxes are increased by the presence of the seed beam.

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“…1,2 Both of these measurement applications have the unusual characteristics that they are intrinsically absolute in that they do not rely on any externally calibrated radiometric standards, and they allow for IR radiation to be measured with visible detectors. Although several groups have demonstrated the feasibility of these applications [3][4][5][6][7][8][9][10] and the accuracy of the detector efficiency measurement has recently been tested, 11 to the best of our knowledge, no high-accuracy test of the absolute radiance measurement has yet been published. One further characteristic of the radiance technique is that this is the only method that measures radiance directly, i.e., separate radiant power and area measurements are not required.…”

Section: Introductionmentioning

confidence: 99%

Measuring absolute infrared spectral radiance with correlated visible photons: technique verification and measurement uncertainty

et al. 1998

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An experimental system in which correlated photons for radiometric measurements were used has been set up at the National Institute of Standards and Technology. We use visible-IR pairs of correlated photons produced by means of optical parametric downconversion to measure the radiance of a high-temperature IR source at 3.415 and 4.772 mum in an intrinsically absolute manner (i.e., without requiring any externally calibrated radiometric standard). To our knowledge, this is the only radiometric method with which one measures radiance directly, instead of using radiant power and aperture geometry measurements to deduce radiance indirectly. This technique has an additional unusual characteristic: It allows absolute radiometric measurements of IR radiation to be made with high-quality visible detectors. We compare measurements made with this technique with radiance measurements made with conventional means tied to existing radiometric standards. These comparisons show an average agreement to within ~3% between the two methods. The results demonstrate an accuracy consistent with the estimated uncertainty of the currentmeasurements. This is the first time to our knowledge that this method has been used to provide absolute radiance measurements of a source that has been calibrated conventionally, revealing unexpected systematic effects and allowing estimates of the ultimate accuracy of this method. In addition, these measurements are further into the IR than any previous measurements of this process and have produced the highest thermally stimulated downconversion signal yet seen.

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Absolute meter of photodetector quantum efficiency based on the parametric down-conversion effect

Cited by 18 publications

References 0 publications

Comparative Test of Two Methods of Quantum Efficiency Absolute Measurement Based on Squeezed Vacuum Direct Detection

Comparative Test of Two Methods of Quantum Efficiency Absolute Measurement Based on Squeezed Vacuum Direct Detection

Analysis of the possibility of analog detectors calibration by exploiting Stimulated Parametric Down Conversion

Measuring absolute infrared spectral radiance with correlated visible photons: technique verification and measurement uncertainty

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