“…In this regime the electric field autocorrelation function is often modeled by use of the order-of-scattering approach in which individual autocorrelation functions for single scattering, double scattering, triple scattering, etc., are calculated, weighted by the relative strength of each order of multiple scattering, and added together. [5][6][7][8][9][10] Double-scattering autocorrelation functions have been calculated for a number of different systems. 3,5,8 -10 Higher-order multiplescattering autocorrelation functions have often been modeled by increasingly rapidly decaying exponentials in the delay time, and the relative strength of various-order scatterings has often been modeled by Poisson statistics.…”