Demonstration of dipolar-induced enhancement of parametric effects in polariton waveguides
Abstract
Exciton-polaritons are hybrid light-matter excitations arising from the non-perturbative coupling of a photonic mode and an excitonic resonance. Behaving as interacting photons, they show optical third-order nonlinearities providing effects such as optical parametric oscillation or amplification. It has been suggested that polariton-polariton interactions can be greatly enhanced by inducing aligned electric dipoles in their excitonic part. However direct evidence of a true particle-particle interaction, such as superfluidity or parametric scattering is still missing. In this work, we demonstrate that dipolar interactions can be used to enhance parametric effects such as self-phase modulation in waveguide polaritons. By quantifying these optical nonlinearities we provide a reliable experimental measurement of the direct dipolar enhancement of polariton-polariton interactions.
Keywords
Cite
@article{arxiv.2005.11385,
title = {Demonstration of dipolar-induced enhancement of parametric effects in polariton waveguides},
author = {Daniel G. Suárez-Forero and Fabrizio Riminucci and Vincenzo Ardizzone and Nicholas Karpowicz and Eugenio Maggiolini and Guido Macorini and Giovanni Lerario and Francesco Todisco and Milena De Giorgi and Lorenzo Dominici and Dario Ballarini and Kenneth West and Loren Pfeiffer and Giuseppe Gigli and Alessandra S. Lanotte and Daniele Sanvitto},
journal= {arXiv preprint arXiv:2005.11385},
year = {2021}
}
Comments
Main text: 6 pages 4 figures. Supporting Information: 3 pages 4 figures