Bose-Einstein condensation of exciton-polaritons

Abstract

A photon’s interaction with a semiconductor material can generate an exciton. If the photon is trapped in a microcavity, the exciton can strongly couple with the photon, resulting in a hybrid bosonic state called an exciton-polariton. When many photons are confined in a semiconductor microcavity, they can produce exciton-polaritons that can transition to a Bose-Einstein Condensate (BEC). Exciton-polariton condensates have certain unique properties which make them suitable for developing optoelectronic devices. The aim is to develop a theoretical model of optical transistors using strongly interacting microcavity BECs of strongly interacting exciton-polaritons. This semester I have studied the derivation of a working model of microcavity exciton polariton BECs in 1D and 2D, and utilized a pre-existing numerical solution code [2] to investigate the variation in their dynamics with change in different parameters.