Microcavity polariton light emitting diode

TL;DR

This paper reports the development of a GaAs microcavity polariton light emitting diode that operates via cavity polaritons up to 100 K, advancing the practical use of polariton devices.

Contribution

It demonstrates the realization of a polariton-based LED with electrical injection in a GaAs microcavity, a key step toward practical polariton optoelectronic devices.

Findings

Cavity polaritons govern spectra up to 100 K

Successful operation of a polariton LED with electrical injection

Advancement toward practical polariton devices

Abstract

Cavity polaritons have been shown these last years to exhibit a rich variety of non-linear behaviors which could be used in new polariton based devices. Operation in the strong coupling regime under electrical injection remains a key step toward a practical polariton device. We report here on the realization of a polariton based light emitting diode using a GaAs microcavity with doped Bragg mirrors. Both photocurrent and electroluminescence spectra are governed by cavity polaritons up to 100 K.