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Using a capacitance balancing circuit, we achieved infrared single-photon detection based on an InGaAs/InP avalanche photodiode (APD) with a low dark count rate and negligible afterpulse effect at room temperature of 290 K. Detection efficiency of 9.80% was attained with the dark count rate of 6.62 × 10-4 per gate, showing that the detector could work efficiently even at room temperature without Peltier...
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