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- W4242334882 abstract "We present results from several years of laboratory characterization and telescope deployment of the near infrared (NIR) avalanche photodiode (APD) array SAPHIRA from Leonardo S.p.A. Dark current has fallen by three orders of magnitude and we have demonstrated NIR photon counting. Tunnel-tunnel current dominates measured dark current at high bias voltages for temperatures ≤ 65K. At higher temperatures, tunnel-thermal dominates. At low temperatures and bias voltages, dark is glow-limited and not responsive to either temperature or bias voltage. Histograms of individual avalanche events show a broad distribution but allow for photon-counting. Several deployments of the SAPHIRA have also been conducted." @default.
- W4242334882 created "2022-05-12" @default.
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- W4242334882 date "2018-07-06" @default.
- W4242334882 modified "2023-09-30" @default.
- W4242334882 title "Observatory deployment and characterization of SAPHIRA HgCdTe APD arrays" @default.
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- W4242334882 doi "https://doi.org/10.1117/12.2311814" @default.
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