Determination of the temporal response function in femtosecond pump-probe systems

A method of determination of the true temporal response function for pump-p robe type of experiments with femtosecond time resolution is presented. An analytical formula allowing calculation of group velocity dispersion (GVD) modified and sample thickness-sensitive pump-probe cross correlation functi on is provided. The reliability of the formula is further experimentally ve rified with measurements of ultrafast stimulated Raman scattering and trans ient absorption signals.