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Leaky Integrate‐and‐Fire Mechanism in Exciton–Polariton Condensates for Photonic Spiking Neurons

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dc.abstract.enThis paper introduces a new approach to neuromorphic photonics in whichmicrocavities exhibiting strong exciton–photon interaction may serve asbuilding blocks of optical spiking neurons. The experimental resultsdemonstrate the intrinsic property of exciton–polaritons to resemble the LeakyIntegrate-and-Fire (LIF) spiking mechanism. It is shown that exciton–polaritonmicrocavities when non-resonantly pumped with a pulsed laser exhibit leakyintegration due to relaxation of the excitonic reservoir, threshold-and-firemechanism due to transition to Bose–Einstein Condensate (BEC), andresetting due to stimulated emission of photons. These effects, evidenced inphotoluminescence characteristics, arise within sub-ns timescales. Thepresented approach provides means for ultrafast processing of spike-like laserpulses with energy efficiency at the level below 1 pJ per spike.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMatuszewski, Michał
dc.contributor.authorOpala, Andrzej
dc.contributor.authorKról, Mateusz
dc.contributor.authorPiętka, Barbara
dc.contributor.authorSzczytko, Jacek
dc.contributor.authorPacuski, Wojciech
dc.contributor.authorSuffczyński, Jan
dc.contributor.authorSeredyński, Bartłomiej
dc.contributor.authorMirek, Rafał
dc.contributor.authorFurman, Magdalena
dc.contributor.authorTyszka, Krzysztof
dc.date.accessioned2024-01-25T05:08:07Z
dc.date.available2024-01-25T05:08:07Z
dc.date.copyright2022-09-30
dc.date.issued2023
dc.description.accesstimeAT_PUBLICATION
dc.description.financeŚrodki finansowe, o których mowa w art. 365 pkt. 2 ustawy
dc.description.number1
dc.description.versionFINAL_PUBLISHED
dc.description.volume17
dc.identifier.doi10.1002/LPOR.202100660
dc.identifier.issn1863-8880
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/111023
dc.identifier.weblinkhttps://onlinelibrary.wiley.com/doi/pdf/10.1002/lpor.202100660
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofLaser and Photonics Reviews
dc.relation.pages2100660-1-10
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.enexciton–polaritons
dc.subject.enleaky integrate-and-fire
dc.subject.enmicrocavities
dc.subject.enneuromorphicphotonics
dc.subject.ensemiconductors
dc.subject.enspiking neural network
dc.subject.enspiking neurons
dc.titleLeaky Integrate‐and‐Fire Mechanism in Exciton–Polariton Condensates for Photonic Spiking Neurons
dc.typeJournalArticle
dspace.entity.typePublication