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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Molecular Diversity Preservation International (MDPI)
2011
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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 |
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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 |
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