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Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion
Nanoplasmonics has recently revolutionized our ability to control light on the nanoscale. Using metallic nanostructures with tailored shapes, it is possible to efficiently focus light into nanoscale field ‘hot spots'. High field enhancement factors have been achieved in such optical nanoantenna...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4532885/ https://www.ncbi.nlm.nih.gov/pubmed/26238815 http://dx.doi.org/10.1038/ncomms8915 |
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author | Caldarola, Martín Albella, Pablo Cortés, Emiliano Rahmani, Mohsen Roschuk, Tyler Grinblat, Gustavo Oulton, Rupert F. Bragas, Andrea V. Maier, Stefan A. |
author_facet | Caldarola, Martín Albella, Pablo Cortés, Emiliano Rahmani, Mohsen Roschuk, Tyler Grinblat, Gustavo Oulton, Rupert F. Bragas, Andrea V. Maier, Stefan A. |
author_sort | Caldarola, Martín |
collection | PubMed |
description | Nanoplasmonics has recently revolutionized our ability to control light on the nanoscale. Using metallic nanostructures with tailored shapes, it is possible to efficiently focus light into nanoscale field ‘hot spots'. High field enhancement factors have been achieved in such optical nanoantennas, enabling transformative science in the areas of single molecule interactions, highly enhanced nonlinearities and nanoscale waveguiding. Unfortunately, these large enhancements come at the price of high optical losses due to absorption in the metal, severely limiting real-world applications. Via the realization of a novel nanophotonic platform based on dielectric nanostructures to form efficient nanoantennas with ultra-low light-into-heat conversion, here we demonstrate an approach that overcomes these limitations. We show that dimer-like silicon-based single nanoantennas produce both high surface enhanced fluorescence and surface enhanced Raman scattering, while at the same time generating a negligible temperature increase in their hot spots and surrounding environments. |
format | Online Article Text |
id | pubmed-4532885 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-45328852015-08-31 Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion Caldarola, Martín Albella, Pablo Cortés, Emiliano Rahmani, Mohsen Roschuk, Tyler Grinblat, Gustavo Oulton, Rupert F. Bragas, Andrea V. Maier, Stefan A. Nat Commun Article Nanoplasmonics has recently revolutionized our ability to control light on the nanoscale. Using metallic nanostructures with tailored shapes, it is possible to efficiently focus light into nanoscale field ‘hot spots'. High field enhancement factors have been achieved in such optical nanoantennas, enabling transformative science in the areas of single molecule interactions, highly enhanced nonlinearities and nanoscale waveguiding. Unfortunately, these large enhancements come at the price of high optical losses due to absorption in the metal, severely limiting real-world applications. Via the realization of a novel nanophotonic platform based on dielectric nanostructures to form efficient nanoantennas with ultra-low light-into-heat conversion, here we demonstrate an approach that overcomes these limitations. We show that dimer-like silicon-based single nanoantennas produce both high surface enhanced fluorescence and surface enhanced Raman scattering, while at the same time generating a negligible temperature increase in their hot spots and surrounding environments. Nature Pub. Group 2015-08-04 /pmc/articles/PMC4532885/ /pubmed/26238815 http://dx.doi.org/10.1038/ncomms8915 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Caldarola, Martín Albella, Pablo Cortés, Emiliano Rahmani, Mohsen Roschuk, Tyler Grinblat, Gustavo Oulton, Rupert F. Bragas, Andrea V. Maier, Stefan A. Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion |
title | Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion |
title_full | Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion |
title_fullStr | Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion |
title_full_unstemmed | Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion |
title_short | Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion |
title_sort | non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4532885/ https://www.ncbi.nlm.nih.gov/pubmed/26238815 http://dx.doi.org/10.1038/ncomms8915 |
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