On collective Rabi splitting in nanolasers and nano-LEDs
Abstract
We analytically calculate the optical emission spectrum of nanolasers and nano-LEDs based on a model of many incoherently pumped two-level emitters in a cavity. At low pump rates we find two peaks in the spectrum for large coupling strengths and numbers of emitters. We interpret the double-peaked spectrum as a signature of collective Rabi splitting, and discuss the difference between the splitting of the spectrum and the existence of two eigenmodes. We show that an LED will never exhibit a split spectrum, even though it can have distinct eigenmodes. For systems where the splitting is possible we show that the two peaks merge into a single one when the pump rate is increased. Finally, we compute the linewidth of the systems, and discuss the influence of inter-emitter correlations on the lineshape.
Keywords
Cite
@article{arxiv.1810.06098,
title = {On collective Rabi splitting in nanolasers and nano-LEDs},
author = {Emil C. André and Igor E. Protsenko and Alexander V. Uskov and Jesper Mørk and Martijn Wubs},
journal= {arXiv preprint arXiv:1810.06098},
year = {2019}
}