Imperial College London
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ProfessorEmilianoCortes

Faculty of Engineering, Department of Materials

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e.cortes

 
 
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Location

 

Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Caldarola:2015:10.1038/ncomms8915,
author = {Caldarola, M and Albella, P and Cortés, E and Rahmani, M and Roschuk, T and Grinblat, G and Oulton, RF and Bragas, AV and Maier, SA},
doi = {10.1038/ncomms8915},
journal = {Nature Communications},
title = {Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion},
url = {http://dx.doi.org/10.1038/ncomms8915},
volume = {6},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - 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.
AU  - Caldarola,M
AU  - Albella,P
AU  - Cortés,E
AU  - Rahmani,M
AU  - Roschuk,T
AU  - Grinblat,G
AU  - Oulton,RF
AU  - Bragas,AV
AU  - Maier,SA
DO  - 10.1038/ncomms8915
PY  - 2015///
SN  - 2041-1723
TI  - Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/ncomms8915
UR  - http://www.ncbi.nlm.nih.gov/pubmed/26238815
UR  - http://hdl.handle.net/10044/1/25628
VL  - 6
ER  -
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