@article{0e182740cb804e04b7cdada48ab29b27,
title = "Photoluminescence revealed higher order plasmonic resonance modes and their unexpected frequency blue shifts in silver-coated silica nanoparticle antennas",
abstract = "Higher order plasmonic resonance modes and their frequency blue shifts in silver-coated silica nanoparticle antennas are studied. Synthesizing them with a wet chemistry method, silica (SiO2) nanoparticles were enclosed within silver shells with different thicknesses. A size-dependent Drude model was used to model the plasmonic shells and their optical losses. Two higher order plasmonic resonances were identified for each case in these simulations. The photoluminescence spectroscopy (PL) experimental results, in good agreement with their simulated values, confirmed the presence of those two higher order resonant modes and their resonance frequencies. When compared with pure metallic Ag nanoparticles, size-induced blue shifts were observed in these resonance frequencies.",
keywords = "Blue shift, Core-shell nanoparticle, Higher order modes, Nanoantenna, Size-dependent optical losses",
author = "Rahman, {Atta Ur} and Junping Geng and Ziolkowski, {Richard W.} and Tao Hang and Qaisar Hayat and Xianling Liang and Rehman, {Sami Ur} and Ronghong Jin",
note = "Funding Information: measured data. A.U.R. and Q.H. explored the TEM technology and acquired the TEM images. A.U.R., J.G., and S.U.R. made the photoluminescence spectroscopy analyses. A.U.R., J.G., R.W.Z., and S.U.R. performed R.W.Z., Q.H., and S.U.R. made the photoluminescence spectroscopy analyses. A.U.R., J.G., R.W.Z., and S.U.R. pdeirsfcoursmsieodn sthaen adnsaulypteicravli saenddt nhuemwerritiicnagl eofffothrtes.m Aa.Unu.Rsc.,r Ji.pGt.., ARl.lWa.uZt.h, oTr.sHr.e, aQd.Han., dS.aUp.Rpr.,oRv.eJd., athned fXin.La.l pmaarntiucispcaritpedt. in the discussions and supervised the writing of the manuscript. All authors read and approved the final Funding: The work was supported in part by the National Natural Science Foundation of China under Grants m61571289anuscript. and 61571298, and in part by the Australian Research Council, grant number DP160102219. Funding Information: The work was supported in part by the National Natural Science Foundation of China under Grants 61571289 and 61571298, and in part by the Australian Research Council, grant number DP160102219. Publisher Copyright: {\textcopyright} 2019 by the authors.",
year = "2019",
doi = "10.3390/app9153000",
language = "English (US)",
volume = "9",
journal = "Applied Sciences (Switzerland)",
issn = "2076-3417",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "15",
}