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

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Abstract: This paper introduces a new approach to neuromorphic photonics in which microcavities exhibiting strong exciton–photon interaction may serve as building blocks of optical spiking neurons. The experimental results demonstrate the intrinsic property of exciton–polaritons to resemble the Leaky Integrate‐and‐Fire (LIF) spiking mechanism. It is shown that exciton–polariton microcavities when non‐resonantly pumped with a pulsed laser exhibit leaky integration due to relaxation of the excitonic reservoir, threshold‐and‐fire mechanism due to transition to Bose–Einstein Condensate (BEC), and resetting due to stimulated emission of photons. These effects, evidenced in photoluminescence characteristics, arise within sub‐ns timescales. The presented approach provides means for ultrafast processing of spike‐like laser pulses with energy efficiency at the level below 1 pJ per spike.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Leaky Integrate‐and‐Fire Mechanism in Exciton–Polariton Condensates for Photonic Spiking Neurons ; day:30 ; month:09 ; year:2022 ; extent:10
Laser & photonics reviews ; (30.09.2022) (gesamt 10)

Urheber
Tyszka, Krzysztof
Furman, Magdalena
Mirek, Rafał
Król, Mateusz
Opala, Andrzej
Seredyński, Bartłomiej
Suffczyński, Jan
Pacuski, Wojciech
Matuszewski, Michał
Szczytko, Jacek
Piętka, Barbara

DOI
10.1002/lpor.202100660
URN
urn:nbn:de:101:1-2022100115100166568949
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:35 MESZ

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Beteiligte

  • Tyszka, Krzysztof
  • Furman, Magdalena
  • Mirek, Rafał
  • Król, Mateusz
  • Opala, Andrzej
  • Seredyński, Bartłomiej
  • Suffczyński, Jan
  • Pacuski, Wojciech
  • Matuszewski, Michał
  • Szczytko, Jacek
  • Piętka, Barbara

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