Cargando…

Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion

Nanostructured plasmonic metamaterials, including optical nanoantenna arrays, are important for advanced optical sensing and imaging applications including surface-enhanced fluorescence, chemiluminescence, and Raman scattering. Although designs typically use ideally smooth geometries, realistic nano...

Descripción completa

Detalles Bibliográficos
Autores principales: Kildishev, Alexander V., Borneman, Joshua D., Chen, Kuo-Ping, Drachev, Vladimir P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231693/
https://www.ncbi.nlm.nih.gov/pubmed/22164010
http://dx.doi.org/10.3390/s110707178
_version_ 1782218265821446144
author Kildishev, Alexander V.
Borneman, Joshua D.
Chen, Kuo-Ping
Drachev, Vladimir P.
author_facet Kildishev, Alexander V.
Borneman, Joshua D.
Chen, Kuo-Ping
Drachev, Vladimir P.
author_sort Kildishev, Alexander V.
collection PubMed
description Nanostructured plasmonic metamaterials, including optical nanoantenna arrays, are important for advanced optical sensing and imaging applications including surface-enhanced fluorescence, chemiluminescence, and Raman scattering. Although designs typically use ideally smooth geometries, realistic nanoantennas have nonzero roughness, which typically results in a modified enhancement factor that should be involved in their design. Herein we aim to treat roughness by introducing a realistic roughened geometry into the finite element (FE) model. Even if the roughness does not result in significant loss, it does result in a spectral shift and inhomogeneous broadening of the resonance, which could be critical when fitting the FE simulations of plasmonic nanoantennas to experiments. Moreover, the proposed approach could be applied to any model, whether mechanical, acoustic, electromagnetic, thermal, etc, in order to simulate a given roughness-generated physical phenomenon.
format Online
Article
Text
id pubmed-3231693
institution National Center for Biotechnology Information
language English
publishDate 2011
publisher Molecular Diversity Preservation International (MDPI)
record_format MEDLINE/PubMed
spelling pubmed-32316932011-12-07 Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion Kildishev, Alexander V. Borneman, Joshua D. Chen, Kuo-Ping Drachev, Vladimir P. Sensors (Basel) Article Nanostructured plasmonic metamaterials, including optical nanoantenna arrays, are important for advanced optical sensing and imaging applications including surface-enhanced fluorescence, chemiluminescence, and Raman scattering. Although designs typically use ideally smooth geometries, realistic nanoantennas have nonzero roughness, which typically results in a modified enhancement factor that should be involved in their design. Herein we aim to treat roughness by introducing a realistic roughened geometry into the finite element (FE) model. Even if the roughness does not result in significant loss, it does result in a spectral shift and inhomogeneous broadening of the resonance, which could be critical when fitting the FE simulations of plasmonic nanoantennas to experiments. Moreover, the proposed approach could be applied to any model, whether mechanical, acoustic, electromagnetic, thermal, etc, in order to simulate a given roughness-generated physical phenomenon. Molecular Diversity Preservation International (MDPI) 2011-07-13 /pmc/articles/PMC3231693/ /pubmed/22164010 http://dx.doi.org/10.3390/s110707178 Text en © 2011 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Kildishev, Alexander V.
Borneman, Joshua D.
Chen, Kuo-Ping
Drachev, Vladimir P.
Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion
title Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion
title_full Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion
title_fullStr Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion
title_full_unstemmed Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion
title_short Numerical Modeling of Plasmonic Nanoantennas with Realistic 3D Roughness and Distortion
title_sort numerical modeling of plasmonic nanoantennas with realistic 3d roughness and distortion
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231693/
https://www.ncbi.nlm.nih.gov/pubmed/22164010
http://dx.doi.org/10.3390/s110707178
work_keys_str_mv AT kildishevalexanderv numericalmodelingofplasmonicnanoantennaswithrealistic3droughnessanddistortion
AT bornemanjoshuad numericalmodelingofplasmonicnanoantennaswithrealistic3droughnessanddistortion
AT chenkuoping numericalmodelingofplasmonicnanoantennaswithrealistic3droughnessanddistortion
AT drachevvladimirp numericalmodelingofplasmonicnanoantennaswithrealistic3droughnessanddistortion