Polariton lasing in Mie-resonant perovskite nanocavity

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外文摘要：Deeply subwavelength lasers(or nanolasers)are highly demanded for compact on-chip bioimaging and sensing at the nanoscale.One of the main obstacles for the development of single-particle nanolasers with all three dimensions shorter than the emitting wavelength in the visible range is the high lasing thresholds and the resulting overheating.Here we ex-ploit exciton-polariton condensation and mirror-image Mie modes in a cuboid CsPbBr3 nanoparticle to achieve coherent emission at the visible wavelength of around 0.53 μm from its ultra-small(≈0.007 μm3 or ≈λ3/20)semiconductor nanocav-ity.The polaritonic nature of the emission from the nanocavity localized in all three dimensions is proven by direct com-parison with corresponding one-dimensional and two-dimensional waveguiding systems with similar material parameters.Such a deeply subwavelength nanolaser is enabled not only by the high values for exciton binding energy(≈35 meV),re-fractive index(>2.5 at low temperature),and luminescence quantum yield of CsPbBr3,but also by the optimization of po-laritons condensation on the Mie resonances with quality factors improved by the metallic substrate.Moreover,the key parameters for optimal lasing conditions are intermode free spectral range and phonons spectrum in CsPbBr3,which govern polaritons condensation path.Such chemically synthesized colloidal CsPbBr3 nanolasers can be potentially de-posited on arbitrary surfaces,which makes them a versatile tool for integration with various on-chip systems.

外文关键词：

nanolaserperovskitepolaritonMie resonanceexciton-polariton

作者：

Mikhail A.Masharin、Daria Khmelevskaia、Valeriy I.Kondratiev、Daria I.Markina、Anton D.Utyushev、Dmitriy M.Dolgintsev、Alexey D.Dmitriev、Vanik A.Shahnazaryan、Anatoly P.Pushkarev、Furkan Isik、Ivan V.Iorsh、Ivan A.Shelykh、Hilmi V.Demir、Anton K.Samusev、Sergey V.Makarov

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作者单位：

UNAM-Institute of Materials Science and Nanotechnology,National Nanotechnology Research Center,Department of Electrical and Electronics Engineering,Department of Physics,Bilkent University,Ankara 06800,Turkey

ITMO University,School of Physics and Engineering,St.Petersburg 197101,Russia

Abrikosov Center for Theoretical Physics,MIPT,Dolgoprudnyi,Moscow Region 141701,Russia

LUMINOUS!Center of Excellence for Semiconductor Lighting and Displays,School of Electrical and Electronic Engineering,School of Physical and Mathematical Sciences,School of Materials Science and Engineering,Nanyang Technological University,Singapore 639798,Singapore

Department of Physics,Engineering Physics and Astronomy,Queen's University,Kingston,Ontario K7L 3N6,Canada

Science Institute,University of Iceland,Dunhagi 3,IS-107,Reykjavik,Iceland

Experimentelle Physik 2,Technische Universität Dortmund,Dortmund 44227,Germany

Qingdao Innovation and Development Center,Harbin Engineering University,Qingdao 266000,China

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基金：

Federal Program'Priority 2030'NSFCDeutsche Forschungsgemeinschaftproject

项目编号：

62350610272529710370

出版年：

2024

DOI：

10.29026/oea.2024.230148

光电进展(英文版)

ISSN：

年,卷(期)：2024.7(4)