Self-Consistent Advection-Diffusion Monte Carlo Simulation of Quenching in Single-Photon Avalanche Diodes

This paper introduces a self-consistent Advection-Diffusion Monte Carlo (ADMC) method for transient modeling of Single-Photon Avalanche Diodes (SPADs), coupling carrier transport with electrostatics via the Poisson equation to simulate avalanche and quenching dynamics. The approach employs a Finite Element Method (FEM) framework for 3D field calculations and explores key phenomena such as the build-up field effect, quenching mechanisms, and quenching time distributions.