Cited by 520Plasmonic and Surface Plasmon ResearchGold and Silver Nanoparticles Synthesis and ApplicationsNear-Field Optical Microscopy

Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low heat conversion

Open access
Caldarola, Martín, Albella, Pablo, Cortés, Emiliano, Rahmani, Mohsen, Roschuk, Tyler, Grinblat, Gustavo, Oulton, Rupert F., Bragas, Andrea V. +1 more·2015·Nature Communications

Abstract

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.

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  • A novel nanophotonic platform based on dielectric nanostructures overcomes the limitations of plasmonic meta-surfaces.

    “Via the realization of a novel nanophotonic platform based on dielectric nanostructures to form efficient nanoantennae with ultra-low light-into heat conversion, is demonstrated an approach that overcomes these limitations.”

    From The Current State of Optical Sensors in Medical Wearables (2022) · cites this paper as [289]

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Authors
Caldarola, M., Albella, P., Cortés, E., Rahmani, M., Roschuk, T., Grinblat, G., Oulton, R. F., Bragas, A. V., & Maier, S. A.
Affiliations
  • Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
  • Imperial College London (GB)
Corresponding author
  • Bragas, Andrea V.
  • Maier, Stefan A.
Venue
Nature Communications
Published
2015-08-04
Volume
6
Issue
1
Pages
7915-7915
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2254159412
Cited by
520
References
60
Citations by year
2026: 16 · 2025: 22 · 2024: 36 · 2023: 35 · 2022: 41 · 2021: 47 · 2020: 59 · 2019: 70 · 2018: 73 · 2017: 64 · 2016: 51 · 2015: 5
FWCI
32.00
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • Spiral (Imperial College London) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Americanae (AECID Library) (submittedVersion, cc-by-nc-sa)
  • UCrea (University of Cantabria) (submittedVersion, cc-by)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-sa)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • Greater South Information System
Funders
  • Leverhulme Trust
  • Universidad de Buenos Aires (2014‐2017)
  • Engineering and Physical Sciences Research Council (EP/I004343/1, EP/H000917/2, EP/H000844/1)
  • Agencia Nacional de Promoción Científica y Tecnológica (2010-00825)
  • Office of Naval Research
  • Office of Naval Research Global
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Plasmonic and Surface Plasmon Research
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Gold and Silver Nanoparticles Synthesis and Applications
  • Physical Sciences › Engineering › Biomedical Engineering › Near-Field Optical Microscopy
Keywords
dielectric nanostructures, silicon nanoantennas, surface-enhanced fluorescence, surface-enhanced Raman scattering, optical loss, heat generation, hot spots, nanophotonics

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