SPAD Single-Photon Detection
Afterpulsing
Afterpulse probability as a function of hold-off time and trap lifetime.
P_ap = P₀ · e^(−t_hold / τ)
Fill the inputs from a real part
Every number is read from that part's datasheet entry: peak power and pulse energy as rated, pulse width at the part's rated maximum.
Solve for
Inputs
Result
Live diagram
Drawn from the values above, redrawn as you type - the same physical schematic the mini-program shows.