Controlling quantum dot emission by plasmonic nanoarrays

R Guo, S Derom, A.I. Vakevainen, Relinde Moes, P. Liljeroth, Daniel Vanmaekelbergh, P. Torma

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Metallic nanoparticle arrays support localized surface plasmon resonances (LSPRs) and propagating surface lattice resonances (SLRs). We study the control of quantum dot (QD) emission coupled to the optical modes of silver nanoparticle arrays, both experimentally and numerically. With a hybrid lithography-functionalization method, the QDs are deposited in the vicinity of the nanoparticles. Directionality and enhancement of the emission are observed in photoluminescence spectra and fluorescence lifetime measurements, respectively. Similar features are also demonstrated in the numerical simulations. The tunable emission of this type of hybrid structures could lead to potential applications in light sources. (C) 2015 Optical Society of America
Original languageEnglish
Pages (from-to)28206-28215
Number of pages10
JournalOptics Express [E]
Volume23
Issue number22
DOIs
Publication statusPublished - 2015

Keywords

  • SELF-ASSEMBLED MONOLAYERS
  • SILVER NANOPARTICLES
  • NANOCAVITY ARRAYS
  • SURFACE
  • (3-MERCAPTOPROPYL)TRIMETHOXYSILANE
  • RESONANCES

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