The reduction of detector dead time represents an enabling factor in several photon counting applications. In this work, we investigate the free-running operation of reach-through single-photon avalanche diodes (SPADs) at ultra-low dead times. By employing a fast active quenching circuit with direct bonding to the detector, we are able to achieve a 10 ns dead time with a thick SPAD by Excelitas, still maintaining extremely low afterpulsing probabilities (below 1.5%).

10-nanosecond dead time and low afterpulsing with a free-running reach-through single-photon avalanche diode

Farina, Serena;Labanca, Ivan;Acconcia, Giulia;Ghioni, Massimo;Rech, Ivan
2022-01-01

Abstract

The reduction of detector dead time represents an enabling factor in several photon counting applications. In this work, we investigate the free-running operation of reach-through single-photon avalanche diodes (SPADs) at ultra-low dead times. By employing a fast active quenching circuit with direct bonding to the detector, we are able to achieve a 10 ns dead time with a thick SPAD by Excelitas, still maintaining extremely low afterpulsing probabilities (below 1.5%).
2022
Single Photon Avalanche Diode, SPAD, High Count Rate
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1233591
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