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Polariton lasing in Mie-resonant perovskite nanocavity
Mie谐振钙钛矿纳米腔中的偏振子激光
Mie共鳴ペロブスカイトナノ空洞における偏光子レーザ
Mie 공명 칼슘 티타늄 나노 챔버의 편광자 레이저
Láser polarizador en nanocavidad de Perovskita de resonancia Mie
Laser polarimon dans une nanocavité de pérovskite résonnante Mie
поляризационный лазер в нанополости резонансного перовскита
Mikhail A. Masharin ¹ ², Daria Khmelevskaia ², Valeriy I. Kondratiev ², Daria I. Markina ², Anton D. Utyushev ², Dmitriy M. Dolgintsev ², Alexey D. Dmitriev ², Vanik A. Shahnazaryan ² ³, Anatoly P. Pushkarev ², Furkan Isik ¹ ⁴, Ivan V. Iorsh ² ⁵, Ivan A. Shelykh ³ ⁶, Hilmi V. Demir ¹ ⁴, Anton K. Samusev ² ⁷, Sergey V. Makarov ² ⁸
¹ 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
² ITMO University, School of Physics and Engineering, St. Petersburg 197101, Russia
³ Abrikosov Center for Theoretical Physics, MIPT, Dolgoprudnyi, Moscow Region 141701, Russia
⁴ 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, 639798, Singapore
⁵ Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, Ontario K7L 3N6, Canada
⁶ Science Institute, University of Iceland, Dunhagi 3, IS-107, Reykjavik, Iceland
⁷ Experimentelle Physik 2, Technische Universität Dortmund, Dortmund 44227, Germany
⁸ Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, China
中国 青岛 哈尔滨工程大学青岛创新发展基地
Opto-Electronic Advances, 25 April 2024
Abstract

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 exploit 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 nanocavity. The polaritonic nature of the emission from the nanocavity localized in all three dimensions is proven by direct comparison 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), refractive index (>2.5 at low temperature), and luminescence quantum yield of CsPbBr3, but also by the optimization of polaritons 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 deposited on arbitrary surfaces, which makes them a versatile tool for integration with various on-chip systems.
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