VCI2019_APDE__310319_.pdf (1.05 MB)
Using quantum entangled photons to measure the absolute photon detection efficiency of a multi-pixel SiPM array
journal contribution
posted on 2020-04-23, 08:47 authored by JOD Williams, JS Lapington, SA Leach, C DuffySpontaneous parametric down-conversion (SPDC)of a visible pump photon is the generation of two less energetic, quantum entangled photons (QEPs), often in the near infrared (NIR), using a non-linear crystal e.g. beta barium borate. Since the detection of one QEP predicates the existence of its entangled twin, QEPs have previously been used to measure the absolute photon detection efficiency (PDE), η(λ), of a detector under test by measuring time-coincident events with an additional trigger detector, allowing evaluation of η DUT (λ)without recourse to a calibrated reference detector. In this paper, the QEP absolute PDE measurement technique is outlined, and an extension of this technique is proposed to measure η(λ)for pixels on a multi-pixel array where each pixel provides an individual signal output. By treating all pixels in a multi-pixel array as indistinguishable, Monte Carlo simulations show that the symmetry of the measurement allows η(λ)to be determined for each pixel. A route towards experimental measurements using this technique with a 64-pixel SiPM array combined with a 64-channel waveform digitiser module is outlined.
History
Citation
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2020, Vol. 958, 162167Author affiliation
Department of Physics and AstronomyVersion
- AM (Accepted Manuscript)
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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated EquipmentVolume
958Publisher
Elsevier for North-Hollandissn
0168-9002Acceptance date
2019-05-02Copyright date
2019Available date
2020-05-16Publisher DOI
Language
enAdministrator link
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