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Multiplexed detector system precisely counts more than 9,000 photons
Researchers have developed a new approach that can precisely count from zero to more than 9,000 individual photons. The advance opens new possibilities for studying quantum light at large scales and making precise optical measurements.
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Researchers at Paderborn University have created a multiplexed detector that can count photons from zero up to more than 9,000 individually. The system extends photon‑counting capability beyond the single‑photon regime toward the sensitivity of high‑sensitivity optical power meters. This advancement could enable new studies of quantum light on larger scales and improve precision in optical measurements. The development addresses the challenge that photon counting becomes more difficult as the number of photons increases.
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