Room-temperature exceptional-point-driven polariton lasing from perovskite metasurface

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buir.contributor.authorMasharin, Mikhail A.
buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidMasharin, Mikhail A.|0000-0003-0687-8706
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage2215007-10en_US
dc.citation.issueNumber22
dc.citation.spage2215007-1
dc.citation.volumeNumber33
dc.contributor.authorMasharin, Mikhail A.
dc.contributor.authorSamusev, A. K.
dc.contributor.authorBogdanov, A. A.
dc.contributor.authorIorsh, I. V.
dc.contributor.authorDemir, Hilmi Volkan
dc.contributor.authorMakarov, S. V.
dc.date.accessioned2024-03-12T09:02:09Z
dc.date.available2024-03-12T09:02:09Z
dc.date.issued2023-05-25
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)
dc.departmentDepartment of Electrical and Electronics Engineering
dc.departmentDepartment of Physics
dc.description.abstractExcitons in lead bromide perovskites exhibit high binding energy and high oscillator strength, allowing for a strong light-matter coupling regime in the perovskite-based cavities localizing photons at the nanoscale. This opens up the way for the realization of exciton-polariton Bose–Einstein condensation and polariton lasing at room temperature – the inversion-free low-threshold stimulated emission. However, polariton lasing in perovskite planar photon cavities without Bragg mirrors has not yet been observed and proved experimentally. In this study, perovskite metasurface is employed, fabricated with nanoimprint lithography, supporting so-called exceptional points to demonstrate the room-temperature polariton lasing. The exceptional points in exciton-polariton dispersion of the metasurface appear upon optically pumping in the nonlinear regime in the spectral vicinity of a symmetry-protected bound state in the continuum providing high mode confinement with the enhanced local density of states beneficial for polariton condensation. The observed lasing emission possesses high directivity with a divergence angle of 1° over one axis. The employed nanoimprinting approach for solution-processable large-scale polariton lasers is compatible with various planar photonic platforms suitable for on-chip integration.
dc.identifier.doi10.1002/adfm.202215007
dc.identifier.eissn1616-3028
dc.identifier.issn1616-301X
dc.identifier.urihttps://hdl.handle.net/11693/114565
dc.language.isoen
dc.publisherJohn Wiley and Sons Inc
dc.relation.isversionofhttps://dx.doi.org/10.1002/adfm.202215007
dc.source.titleAdvanced Functional Materials
dc.subjectExceptional points
dc.subjectExciton-polariton condensation
dc.subjectPerovskite metasurfaces
dc.subjectPolariton lasing
dc.titleRoom-temperature exceptional-point-driven polariton lasing from perovskite metasurface
dc.typeArticle

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Institute of Materials Science and Nanotechnology (UNAM)
Department of Electrical and Electronics Engineering
Department of Physics