We continue examination of the photon correlation properties of silicon avalanche photodiodes operated in the single-photon counting mode by extending their operation from that of passive [Appl. Opt. 25, 4122–4126 (1986)] and active [Appl. Opt. 26, 2383–2389 (1987)] quenching to the sub-Geiger mode, with potential for high quantum efficiency and very low afterpulsing.
Robert G. W. Brown and Matthew Daniels, "Characterization of silicon avalanche photodiodes for photon correlation measurements. 3: Sub-Geiger operation," Appl. Opt. 28, 4616-4621 (1989)