Polariton theory of resonant electronic Raman scattering on neutral donor levels in semiconductors with a direct band gap

Abstract
The theory is presented for the Raman scattering on bound electrons of neutral donors in the semiconductors with a direct band gap at the incident photon frequency in the resonance with the exciton. The cross-section of the polariton scattering with the transition of the donor electron from the ground state to the first excited state is calculated