Providing reference standards and metrology for the few photon–photon counting community

Beaumont, Andrew; Cheung, Jessica Y.; Chunnilall, Christopher J.; Ireland, Jane; White, M. G.

doi:10.1016/j.nima.2009.05.177

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…80,367 While this is certainly an ambitious goal, it offers a potential path toward improving radiometric measurements by many orders of magnitude, and provides a solid infrastructure for characterizing and developing better sources and detectors.…”

Section: Discussionmentioning

confidence: 99%

Invited Review Article: Single-photon sources and detectors

Eisaman

Fan²,

Migdall³

et al. 2011

Review of Scientific Instruments

1,301

1,317

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Section: Discussionmentioning

confidence: 99%

Invited Review Article: Single-photon sources and detectors

Eisaman

Fan²,

Migdall³

et al. 2011

Review of Scientific Instruments

1,301

1,317

View full text Add to dashboard Cite

show abstract

“…National metrology institutes have shown recent interest in using single photons as the basis of radiometric standards [1][2][3][4][5] to complement existing thermal and synchrotron sources. Such metrology efforts require the linking of singlephoton measurements to radiometric standards at higher power levels, and extending photon counting and photonnumber resolution to higher numbers is a step toward that goal.…”

Section: Introductionmentioning

confidence: 99%

Algorithm for finding clusters with a known distribution and its application to photon-number resolution using a superconducting transition-edge sensor

et al. 2012

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Improving photon-number resolution of single-photon sensitive detectors is important for many applications, as is extending the range of such detectors. Here we seek improved resolution for a particular superconducting transition-edge sensor (TES) through better processing of the TES output waveforms. With that aim, two algorithms to extract number resolution from TES output waveforms are compared. The comparison is done by processing waveform data sets from a TES illuminated at nine illumination levels by a pulsed laser at 1550 nm. The algorithms are used to sort the individual output waveforms and then create clusters associated with individual photon numbers. The first uses a dot product with the waveform mean (for each illumination level), while the second uses K-means clustering modified to include knowledge of the Poisson distribution. The first algorithm is shown to distinguish adjacent peaks associated with photon numbers up to 19, whereas the second algorithm distinguishes photon numbers up to 23, using the same data.

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“…One key element of quantum technologies is the ability to prepare true single photon states, whose applications range from quantum key distribution (QKD), yielding high photon rates without diminishing communication security by multiphoton events that an eavesdropper could exploit [1][2][3], linear optics quantum computation [4] to quantum metrology [5][6][7] and studies on foundations of quantum mechanics [8]. In particular, in optical quantum metrology there is increasing interest in the preparation of such states for redefining the candela unit in terms of single photon counting [9,10].…”

Section: Introductionmentioning

confidence: 99%

Photon number statistics of NV centre emission

et al. 2012

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Optical sources that deterministically produce single photons with a high suppression of multi-photon emission and a negligible background component are promising candidates for standard sources for quantum metrology, quantum communication and foundations of quantum mechanics. In this paper, the photon number distribution of non-classical light emitted by nitrogen vacancy (NV) centres in nano-diamonds is studied by three different experimental techniques. The photon number resolving transition edge sensor (TES) detector and the On/Off detection method are applied to determine the diagonal elements of the optical density matrix. From the data measured by the two methods the second order correlation function at time delay zero is calculated and compared with the g 2 (0)-values obtained by Hanbury Brown-Twiss (HBT) interferometric measurements. Among the g 2 (0)-values evaluated with the three techniques, we found good agreement in the results for a single photon emitter with a g 2 (0)-value close to zero and a multi-photon source with a g 2 (0)-value of approximately 0.5.

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Providing reference standards and metrology for the few photon–photon counting community

Cited by 9 publications

References 15 publications

Invited Review Article: Single-photon sources and detectors

Invited Review Article: Single-photon sources and detectors

Algorithm for finding clusters with a known distribution and its application to photon-number resolution using a superconducting transition-edge sensor

Photon number statistics of NV centre emission

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