ArticleNanophotonics (Berlin, Germany)2024
Non-Hermitian polariton-photon coupling in a perovskite open microcavity.
Article in Nanophotonics (Berlin, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Mapping the Strong-to-Weak Coupling Crossover in Polymer-Film Microcavity Lasers.Nanophotonics (Berlin, Germany) · 2026Article
- Interference-Induced Cavity Resonances and Imaginary Rabi Splitting.Nanophotonics (Berlin, Germany) · 2026Article
- Room-temperature polariton condensate in a quasi-2D hybrid perovskite.Nature communications · 2026Article
- Strong Coupling of Organic Molecules 2023 (SCOM23).Nanophotonics (Berlin, Germany) · 2024Article
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10 authors.
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Abstract
Exploring the non-Hermitian properties of semiconductor materials for optical applications is at the forefront of photonic research. However, the selection of appropriate systems to implement such photonic devices remains a topic of debate. In this work, we demonstrate that a perovskite crystal, characterized by its easy and low-cost manufacturing, when placed between two distributed Bragg reflectors with an air gap, can form a natural double microcavity. This construction shows promising properties for the realisation of novel, tunable non-Hermitian photonic devices through strong light-matter coupling. We reveal that such a system exhibits double-coupled polariton modes with dispersion including multiple inflection points. Owing to its non-Hermiticity, our system exhibits nonreciprocal properties and allows for the observation of exceptional points. Our experimental studies are in agreement with the theoretical analysis based on coupled mode theory and calculations based on transfer matrix method.
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