Fiche publication
Date publication
avril 2024
Journal
Nanotechnology
Auteurs
Membres identifiés du Cancéropôle Est :
Pr WEEBER Jean-Claude
Tous les auteurs :
Yu X, Weeber JC, Markey L, Arocas J, Bouhelier A, Leray A, Colas des Francs G
Lien Pubmed
Résumé
Integrated quantum photonic circuits require the efficient coupling of photon sources to photonic waveguides. Hybrid plasmonic/photonic platforms are a promising approach, taking advantage of both plasmon modal confinement for efficient coupling to a nearby emitter and photonic circuitry for optical data transfer and processing. In this work, we established directional quantum dot (QD) emission coupling to a planar TiOwaveguide assisted by a Yagi-Uda antenna. Antenna on waveguide is first designed by scaling radio frequency dimensions to nano-optics, taking into account the hybrid plasmonic/photonic platform. Design is then optimized by full numerical simulations. We fabricate the antenna on a TiOplanar waveguide and deposit a few QDs close to the Yagi-Uda antenna. The optical characterization shows clear directional coupling originating from antenna effect. We estimate the coupling efficiency and directivity of the light emitted into the waveguide.
Mots clés
lab-on-chip, nano-antenna, photonic integration, plasmonics, quantum optics
Référence
Nanotechnology. 2024 04 9;35(26):
