Reflectivity of a semiconducting crystal in the exciton resonance region of the spectrum

Abstract

It is shown how bilocal exciton-polariton theory in configuration space does explain the deviations in the exciton reflection spectra from the classical oscillator lineshape. Apart from a numerical matrix inversion the calculations are performed by analytical methods. Comparison with the experimental spectra for CdS and GaAs leads to very good agreement.