Absorption spectrum of polydiacetylene (PDA) as a function of polarisation angle. Pump probe spectrum of PDA in all parallel configuration. Genetic algorithm decomposition of spectrum and kinetics. Pump energy dependence of 2Ag lifetime. Pump push probe spectra of PDA, line narrowing of triplet pair state in PDA. Pump probe and pump push probe spectra of carotenoid, astraxanathin both isolated and in aggregate form. Push time of 200 fs and 500 fs. Inside zip is the matlab code used to simulate the pump probe and pump push spectra. The codes are fully labelled and commented such as to run them. The file PPPsim.m should be run for the PDA simulations and PPPsimAXT.m for the AXT simulations the codes will find the necessary files if they are all in the same folder.