Mid-infrared single-photon counting

Temporão, Guilherme P.; Tanzilli, Sébastien; Zbinden, Hugo; Gisin, Nicolas; Aellen, Thierry; Giovannini, Marcella; Faist, J.

doi:10.1364/ol.31.001094

Cited by 56 publications

(26 citation statements)

References 8 publications

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“…A measured QE of 20% has been achieved, due to the high circulating power within the cavity resulting from the low-loss cavity design27. This is at least three orders of magnitude higher than the one reported in similar up-conversion schemes28.…”

Section: Resultsmentioning

confidence: 84%

Mid-infrared coincidence measurements on twin photons at room temperature

et al. 2017

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Quantum measurements using single-photon detectors are opening interesting new perspectives in diverse fields such as remote sensing, quantum cryptography and quantum computing. A particularly demanding class of applications relies on the simultaneous detection of correlated single photons. In the visible and near infrared wavelength ranges suitable single-photon detectors do exist. However, low detector quantum efficiency or excessive noise has hampered their mid-infrared (MIR) counterpart. Fast and highly efficient single-photon detectors are thus highly sought after for MIR applications. Here we pave the way to quantum measurements in the MIR by the demonstration of a room temperature coincidence measurement with non-degenerate twin photons at about 3.1 μm. The experiment is based on the spectral translation of MIR radiation into the visible region, by means of efficient up-converter modules. The up-converted pairs are then detected with low-noise silicon avalanche photodiodes without the need for cryogenic cooling.

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Section: Resultsmentioning

confidence: 84%

Mid-infrared coincidence measurements on twin photons at room temperature

et al. 2017

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“…The efficiency of the SFG-based UCD of 8.2% exceeds the reported conversion efficiency of 5x10 -3 % of a comparable up-conversion detection scheme, using bulk optical crystals [2], by nearly three orders of magnitude. A noise equivalent power NEP = 0.3 pW/Hz 1/2 is measured using 1 Watt of external pump power and a commercial InGaAs PIN photo detector with an active area of 100 µm diameter.…”

Section: Discussionmentioning

confidence: 63%

“…On the other hand, DFG and especially Sum-Frequency Generation (SFG) can also be used to realize hybrid up-conversion detectors (UCD), which convert MIR radiation to a shorter wavelength in the near-infrared (NIR) or even visible [2,3]. We demonstrate the realization of waveguide-based UCDs for the MIR range, which offer superior nonlinear conversion efficiencies when compared to bulk-optical devices of similar dimensions.…”

Section: Introductionmentioning

confidence: 99%

Waveguide-based Mid-Infrared Up-conversion Detectors

et al. 2011

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“…In MIR experiments, thermal photons may significantly interfere with measurements due to blackbody radiation, as governed by Bose-Einstein statistics [4]. Furthermore, changes in air conditions in the inspection environment can alter a measured spectrum because constituent molecular species such as N 2 , O 2 , CO 2 , and H 2 O are IR active.…”

Section: Primary Ftir Physics and Instrumentationmentioning

confidence: 99%