UV/visible high-sensitivity MCP-PMT single-photon GHz counting detector for long-range lidar instrumentations

Orlov, D. A.; Glazenborg, René; Ortega, R. Menéndez de Llano; Kernen, Emilie

doi:10.1007/s12567-019-00260-0

Cited by 16 publications

(9 citation statements)

References 6 publications

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“…This is due to a systematic effect in the intensifier caused by MCP afterpulsing. Electron avalanches in MCP could result in secondary electrons or ions producing independent hits in the vicinity of the primary hit [ 58 , 59 ]. The time difference between the main hit and afterpulse hit is small, typically of the order of nanoseconds or less, so the coincidence finding algorithm would identify some of these cases as pairs of photons.…”

Section: Resultsmentioning

confidence: 99%

Counting of Hong-Ou-Mandel Bunched Optical Photons Using a Fast Pixel Camera

Nomerotski

Keach

Švihra

et al. 2020

Sensors

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The uses of a silicon-pixel camera with very good time resolution (∼nanosecond) for detecting multiple, bunched optical photons is explored. We present characteristics of the camera and describe experiments proving its counting capabilities. We use a spontaneous parametric down-conversion source to generate correlated photon pairs, and exploit the Hong-Ou-Mandel (HOM) interference effect in a fiber-coupled beam splitter to bunch the pair onto the same output fiber. It is shown that the time and spatial resolution of the camera enables independent detection of two photons emerging simultaneously from a single spatial mode.

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Section: Resultsmentioning

confidence: 99%

Counting of Hong-Ou-Mandel Bunched Optical Photons Using a Fast Pixel Camera

Nomerotski

Keach

Švihra

et al. 2020

Sensors

View full text Add to dashboard Cite

show abstract

“…The reason is a systematic effect in the intensifier due to the MCP afterpulsing. Electron avalanches in MCP could result in secondary electrons or ions producing independent hits in the vicinity of the primary hit [52,53]. The time difference between the main hit and afterpulse hit is small, typically of the order of nanoseconds or less, so the coincidence finding algorithm would identify some of these cases as pairs of photons.…”

Section: Resultsmentioning

confidence: 99%

Counting of Hong-Ou-Mandel Bunched Optical Photons Using a Fast Pixel Camera

Nomerotski,

Keach,

Stankus

et al. 2020

Preprint

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“…Due to the high fluxes obtained at these large telescopes, these experiments currently rely on correlating the photo-current of photomultiplier tubes. Recently, prototypes single photon counting detectors with up to GHz burst rates, large areas, low timing jitter, and high quantum efficiencies have been realised by Orlov et al (2019). The use of such detectors could be especially beneficial at telescopes like MAGIC or the Cherenkov Telescope Array's Large Size Telescopes, which have an intrinsic telescope timing jitter on the order of 100 ps (Shayduk et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Temporal Intensity Interferometry at a 0.5 m Telescope

Karl¹,

Richter²,

Zanthier³

2023

Preprint

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Intensity interferometry correlates light intensities rather than amplitudes of individual telescopes to recover the source geometry. While intensity correlations can alleviate the technical challenges of amplitude interferometry, and thus enable the realization of larger baselines and therefore higher resolution in astronomical imaging, this comes at the cost of greatly reduced sensitivity. We report the observation of photon bunching in the light of 𝛼 Lyrae (Vega), measured with a telescope of merely 0.5 m in diameter (Planewave CDK 20). The entire measurement setup, including collimation, optical filtering, and detection, was attached directly to the telescope without the use of optical fibers, facilitated by the large area of our single photon detectors. After a total exposure time of 32.4 h over the course of six nights, a correlation signal with a contrast of (9.5 ± 2.7) × 10 −3 and a coherence time (0.34 ± 0.12) ps was recovered, fitting well to preceding laboratory tests as well as expectations calculated from the optical and electronic characteristics of our measurement setup.

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UV/visible high-sensitivity MCP-PMT single-photon GHz counting detector for long-range lidar instrumentations

Cited by 16 publications

References 6 publications

Counting of Hong-Ou-Mandel Bunched Optical Photons Using a Fast Pixel Camera

Counting of Hong-Ou-Mandel Bunched Optical Photons Using a Fast Pixel Camera

Counting of Hong-Ou-Mandel Bunched Optical Photons Using a Fast Pixel Camera

Temporal Intensity Interferometry at a 0.5 m Telescope

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