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Capturing plasmon/polariton dynamics of molecular dye monolayers on metallic core-shell nanoparticles using classical electrodynamics with quantum embedding

Smith, Holden T. and Karam, Tony E. and Haber, Louis H. and Lopata, Kenneth (2018) Capturing plasmon/polariton dynamics of molecular dye monolayers on metallic core-shell nanoparticles using classical electrodynamics with quantum embedding. In: 255th American Chemical Society National Meeting & Exposition, March 18-22, 2018, New Orleans, LA. http://resolver.caltech.edu/CaltechAUTHORS:20180705-100114910

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Abstract

A multiscale hybrid quantum/classical approach using n-level quantum systems embedded in a classical electrodynamics background is used to simulate thousands of triphenylmethane dyes on the surface of gold, silver-gold core-shell, and gold-silver-gold core-shell-shell nanoparticles. This method employs a finite-difference time-domain (FDTD) approach to describe the plasmonic response of the NP within the main FDTD framework and a n-level quantum description for the mols. coupled via a Maxwell/Liouville approach. Addnl., second harmonic generation measurements are used to det. the adsorbate population on the surface of these NPs, and these results are used to parameterize the quantum mols. Extinction spectroscopic measurements reveal strong coupling, leading to new polaritonic states sepd. by a splitting energy DEp and overlapped in a Fano-type resonance profile, as well as, plasmon and mol. depletions. The theor. model allows us to predict the relative coupling strengths between the adsorbed mols. and NP, allowing for the design of new and efficient devices for chem. sensing, bioimaging, photovoltaics and drug delivery.


Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription
https://global.acs.org/events/255th-acs-national-meeting-exposition/OrganizationConference Website
ORCID:
AuthorORCID
Smith, Holden T.0000-0001-5487-8431
Karam, Tony E.0000-0002-1244-5141
Haber, Louis H.0000-0001-7706-7789
Lopata, Kenneth0000-0002-9141-684X
Additional Information:© 2018 American Chemical Society.
Record Number:CaltechAUTHORS:20180705-100114910
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180705-100114910
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87549
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:05 Jul 2018 17:12
Last Modified:05 Jul 2018 17:12

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