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DTSTAMP:20260416T044046
DTSTART:20130909T113000
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URL:https://murmitoyen.com/events/vanille/udem/detail/257008
LOCATION:Université de Montréal - Pavillon J.-Armand-Bombardier\, 5155\, 
 chemin de la rampe \, Montréal\, QC\, Canada\, H3T 2B2
SUMMARY:Correlating Structure\, Geometry and Optical Properties of Plasmoni
 c Nanoclusters – Lilin Tay\, NRC
DESCRIPTION:Lilin Tay\, National Research Council\, Ottwaw\, CanadaSmall a
 ggregates of plasmonic nanoparticle are known to sustain large surface enh
 anced Raman scattering (SERS) signals due to coupling of localized surface
  plasmon resonances (LSPR) induced by the excitation radiation. We have sy
 nthesized plasmonic nanoclusters encapsulated in silica shells dopped with
  a variety of Raman reporter molecules as an alternative optical label to 
 fluorophores for sensing and imaging applications. Experimental measuremen
 ts and theoretical calculations have shown the intricate dependency of LSP
 R on the geometrical arrangement of nanoparticle structures but few have t
 he relative electric field strength at the various electromagnetic hot-sit
 es. In this presentation\, I will discuss our recent work on the study of 
 electric field variations at the junction hot sites in plasmonic nanoculst
 ers both by spectroscopic measurement and electromagnetic calculations. Sp
 ecifically\, I will discuss the influence of nanocluster geometry on the l
 ocal field strength in the nanocluster junction hot-siteSite web du groupe
  de  Dr. TayCette conférence est présentée par le RQMP Versant Nord du
  Département de physique de l'Université de Montréal et le Départemen
 t de génie physique de Polytechnique Montréal.
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