A Quantitative Analysis of Two-Colour Pump and Probe Spectra from Bound Excitons in Compensated II–VI Semiconductors

Excitonic energy transfer processes were investigated with time-resolved two-colour pump and probe spectroscopy in the ps-region. In highly compensated ZnSe epilayers, characteristic induced absorption and transmission resonances related to donor bound excitons (I₂) and acceptor bound excitons (I₁) could be observed. To explain the experimental results quantitatively a set of coupled rate equations was developed.