Giant ultrafast all-optical modulation based on exceptional points in exciton–polariton perovskite metasurfaces

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buir.contributor.authorMasharin, Mikhail A.
buir.contributor.authorOskolkova, Tatiana
buir.contributor.authorIşık, Furkan
buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidMasharin, Mikhail A.|0000-0003-0687-8706
buir.contributor.orcidOskolkova, Tatiana|0000-0003-4889-7024
buir.contributor.orcidIşık, Furkan|0000-0001-5881-5438
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage3455en_US
dc.citation.issueNumber4
dc.citation.spage3447
dc.citation.volumeNumber18
dc.contributor.authorMasharin, Mikhail A.
dc.contributor.authorOskolkova, Tatiana
dc.contributor.authorIşık, Furkan
dc.contributor.authorDemir, Hilmi Volkan
dc.contributor.authorSamusev, A. K.
dc.contributor.authorMakarov, S .V.
dc.date.accessioned2024-03-20T13:27:31Z
dc.date.available2024-03-20T13:27:31Z
dc.date.issued2024-01-22
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)
dc.departmentDepartment of Electrical and Electronics Engineering
dc.description.abstractUltrafast all-optical modulation with optically resonant nanostructures is an essential technology for high-speed signal processing on a compact optical chip. Key challenges that exist in this field are relatively low and slow modulations in the visible range as well as the use of expensive materials. Here we develop an ultrafast all-optical modulator based on MAPbBr3 perovskite metasurface supporting exciton–polariton states with exceptional points. The additional angular and spectral filtering of the modulated light transmitted through the designed metasurface allows us to achieve 2500% optical signal modulation with the shortest modulation time of 440 fs at the pump fluence of ∼40 μJ/cm2. Such a value of the modulation depth is record-high among the existing modulators in the visible range, while the main physical effect behind it is polariton condensation. Scalable and cheap metasurface fabrication via nanoimprint lithography along with the simplicity of perovskite synthesis and deposition make the developed approach promising for real-life applications.
dc.embargo.release2025-01-22
dc.identifier.doi10.1021/acsnano.3c10636
dc.identifier.eissn1936-086X
dc.identifier.issn1936-0851
dc.identifier.urihttps://hdl.handle.net/11693/115018
dc.language.isoen_US
dc.publisherAmerican Chemical Society
dc.relation.isversionofhttps://dx.doi.org/10.1021/acsnano.3c10636
dc.rightsCC BY-NC-ND 4.0 Deed (Attribution-NonCommercial-NoDerivs 4.0 International)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.source.titleACS Nano
dc.subjectExciton−polariton
dc.subjectHalide perovskites
dc.subjectMetasurface
dc.subjectExceptional points
dc.subjectUltrafast optical modulation
dc.subjectPolariton condensate
dc.titleGiant ultrafast all-optical modulation based on exceptional points in exciton–polariton perovskite metasurfaces
dc.typeArticle

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