Surface Plasmon Enhanced Strong Exciton-Photon Coupling in Hybrid Inorganic-Organic Perovskites Nanowires

Abstract

Manipulating strong light-matter interaction in semiconductor microcavities is crucial for developing high-performance exciton polariton devices with great potentials in next-generation all-solid state quantum technologies. In this work, we report surface plasmon enhanced strong exciton-photon interaction in CH3NH3PbBr3 perovskite nanowires. Characteristic anti-crossing behaviors, indicating Rabi splitting energy up to ~ 560 meV, are observed near exciton resonance in hybrid semiconductor-insulator-metallic waveguide cavity at room temperature. An exciton-photon coupling strength enhancement factor of ~ 1.4 times is evaluated, which is mainly attributed to surface plasmon induced localized excitation field redistribution. Further, systematic studies on nanowires and insulator dimension dependence of exciton-photon interaction are presented. These results provide new avenues to achieve extremely high coupling strengths and push forward the development of electrically pumped and ultra-low threshold small lasers.

arXiv comment28 pages,5 figures

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Cited by in corpus (6)

• Exciton-Photonics: From Fundamental Science to Applications
• Tailoring dispersion of room temperature exciton-polaritons with perovskite-based subwavelength metasurfaces
• Room temperature cavity polaritons with 3D hybrid perovskite - Towards low-cost polaritonic devices
• Self-hybridisation between interband transitions and Mie modes in dielectric nanoparticles
• Directing random lasing emission using cavity exciton-polaritons
• Enhancing the Three-Photon Luminesce via the Resonance in Lead Halide Perovskite Metasurfaces