Related Experiment Video
Updated: Apr 4, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Harnessing highly efficient coherent polariton parametric emission in quantum confined perovskite microcavities
Xinyi Deng1, Sanjib Ghosh2, Jiepeng Song1
1School of Materials Science and Engineering, Peking University, Beijing, 100871, PR China.
Abstract:
Microcavity exciton polaritons emerge as a versatile platform for nonlinear optical effects thanks to the unique dispersion which enables a manifold of energy and wavevector conserved processes. However, efficient generation of parametric emission while preserving coherence remains challenging mainly due to lack of strong parametric interactions compared to simultaneous interaction with relaxation channels. Herein, we report highly efficient parametric emission with sub-1-meV linewidth from quantum confined microcavities, enabling the first observation of strong phase coherence between the two parametric species. Quantum size effect enabled by surface disorder in confined systems acts as the microscopic mechanism for the observed anomalous enhancement of parametric emission, playing important role in triggering exotic parametric interactions for microcavity polaritons. Finally, we demonstrate the emergence of polariton supersolid phase at room temperature in a coherent parametric oscillator, characterized by periodic density modulation in real space that indicates the breaking of translational symmetry.
More Related Videos
07:56A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
12:57Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
Published on: October 13, 2017
Related Concept Videos
Photoluminescence: Applications
Potential Due to a Polarized Object
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)