Interacting Exciton-Polaritons in Cylindric Micropillars

We present a quantitative microscopic analysis of the formation of exciton-polaritons, the composite particles possessing light and material components, polariton-polariton interactions, and resonant pumping dynamics in cylindrical semiconductor micropillars. We obtain that, due to the exciton-exciton interaction, the polaritonic states' populations become redistributed among pumped and pristine states. We discuss how the redistribution effect can be used in devices generating photons with nonzero orbital angular momenta.

Automated summary

In this study, we quantitatively analyzed the formation of exciton-polaritons, their interactions, and pumping dynamics in cylindrical semiconductor micropillars. The redistribution of polaritonic states' populations is observed due to exciton-exciton interaction, which can be utilized in devices for generating photons with nonzero orbital angular momenta.