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White nanolight source for optical nanoimaging

Nanolight sources, which are based on resonant excitation of plasmons near a sharp metallic nanostructure, have attracted tremendous interest in the vast research fields of optical nanoimaging. However, being a resonant phenomenon, this ideally works only for one wavelength that resonates with the p...

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Autores principales: Umakoshi, Takayuki, Tanaka, Misaki, Saito, Yuika, Verma, Prabhat
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7269664/
https://www.ncbi.nlm.nih.gov/pubmed/32537508
http://dx.doi.org/10.1126/sciadv.aba4179
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author Umakoshi, Takayuki
Tanaka, Misaki
Saito, Yuika
Verma, Prabhat
author_facet Umakoshi, Takayuki
Tanaka, Misaki
Saito, Yuika
Verma, Prabhat
author_sort Umakoshi, Takayuki
collection PubMed
description Nanolight sources, which are based on resonant excitation of plasmons near a sharp metallic nanostructure, have attracted tremendous interest in the vast research fields of optical nanoimaging. However, being a resonant phenomenon, this ideally works only for one wavelength that resonates with the plasmons. Multiple wavelengths of light in a broad range confined to one spot within a nanometric volume would be an interesting form of light, useful in numerous applications. Plasmon nanofocusing can generate a nanolight source through the propagation and adiabatic compressions of plasmons on a tapered metallic nanostructure, which is independent of wavelength, as it is based on the propagation, rather than resonance, of plasmons. Here, we report the generation of a white nanolight source spanning over the entire visible range through plasmon nanofocusing and demonstrate spectral bandgap nanoimaging of carbon nanotubes. Our experimental demonstration of the white nanolight source would stimulate diverse research fields toward next-generation nanophotonic technologies.
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spelling pubmed-72696642020-06-11 White nanolight source for optical nanoimaging Umakoshi, Takayuki Tanaka, Misaki Saito, Yuika Verma, Prabhat Sci Adv Research Articles Nanolight sources, which are based on resonant excitation of plasmons near a sharp metallic nanostructure, have attracted tremendous interest in the vast research fields of optical nanoimaging. However, being a resonant phenomenon, this ideally works only for one wavelength that resonates with the plasmons. Multiple wavelengths of light in a broad range confined to one spot within a nanometric volume would be an interesting form of light, useful in numerous applications. Plasmon nanofocusing can generate a nanolight source through the propagation and adiabatic compressions of plasmons on a tapered metallic nanostructure, which is independent of wavelength, as it is based on the propagation, rather than resonance, of plasmons. Here, we report the generation of a white nanolight source spanning over the entire visible range through plasmon nanofocusing and demonstrate spectral bandgap nanoimaging of carbon nanotubes. Our experimental demonstration of the white nanolight source would stimulate diverse research fields toward next-generation nanophotonic technologies. American Association for the Advancement of Science 2020-06-03 /pmc/articles/PMC7269664/ /pubmed/32537508 http://dx.doi.org/10.1126/sciadv.aba4179 Text en Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Umakoshi, Takayuki
Tanaka, Misaki
Saito, Yuika
Verma, Prabhat
White nanolight source for optical nanoimaging
title White nanolight source for optical nanoimaging
title_full White nanolight source for optical nanoimaging
title_fullStr White nanolight source for optical nanoimaging
title_full_unstemmed White nanolight source for optical nanoimaging
title_short White nanolight source for optical nanoimaging
title_sort white nanolight source for optical nanoimaging
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7269664/
https://www.ncbi.nlm.nih.gov/pubmed/32537508
http://dx.doi.org/10.1126/sciadv.aba4179
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