Modeling of picosecond photobleaching in large molecules

Abstract

A kinetic model which simulates ultrafast processes by numerical integration of rate equations based upon a homogeneously broadened two level system is compared with experimental results obtained by picosecond spectroscopy experiments. Application of the model to predict behavior of the saturable absorber DODeI using only measured molecular properties and no adjustable parameters illustrates the predictive ability of the present method in the nonlinear as well as linear regime of molecular response.