Abstract

The exciton-polariton pittare of optical interactions of light with a crystal, as first discussed by Hopfield,¹ is significantly different from the description obtained treating the exciton-light interaction perturbatively. Specifically, in the latter formalism, an increase in the dissipation or damping (represented by the parameter y, which gives the decay rate of the polarization) leads only to line broadening.

© 1997 Optical Society of America