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.

arXiv commentMain text: 6 pages 4 figures. Supporting Information: 3 pages 4 figures

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• Integrated quantum polariton interferometry
• Supersolidity of polariton condensates in photonic crystal waveguides
• Deterministic entangling gates with nonlinear quantum photonic interferometers
• Electrically controlled photonic circuits of field-induced dipolaritons with huge nonlinearities
• Mode-locked GaN waveguide polariton laser
• Microscopic theory of polariton-polariton interactions
• Ultrafast, low-energy, all-optical switch in polariton waveguides
• Exciton-polaritons in GaAsbased slab waveguide photonic crystals
• Quantization of Polaritons Confined in Dielectric Structures