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Broadband and Highly Directional Visible Light Scattering by Laser-Splashed Lossless TiO(2) Nanoparticles
All-dielectric nanoparticles, as the counterpart of metallic nanostructures have recently attracted significant interest in manipulating light-matter interaction at a nanoscale. Directional scattering, as an important property of nanoparticles, has been investigated in traditional high refractive in...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540540/ https://www.ncbi.nlm.nih.gov/pubmed/34684687 http://dx.doi.org/10.3390/molecules26206106 |
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author | Zhang, Yinan Chen, Shiren Han, Jing |
author_facet | Zhang, Yinan Chen, Shiren Han, Jing |
author_sort | Zhang, Yinan |
collection | PubMed |
description | All-dielectric nanoparticles, as the counterpart of metallic nanostructures have recently attracted significant interest in manipulating light-matter interaction at a nanoscale. Directional scattering, as an important property of nanoparticles, has been investigated in traditional high refractive index materials, such as silicon, germanium and gallium arsenide in a narrow band range. Here in this paper, we demonstrate that a broadband forward scattering across the entire visible range can be achieved by the low loss TiO(2) nanoparticles with moderate refractive index. This mainly stems from the optical interferences between the broadband electric dipole and the magnetic dipole modes. The forward/backward scattering ratio reaches maximum value at the wavelengths satisfying the first Kerker’s condition. Experimentally, the femtosecond pulsed laser was employed to splash different-sized nanoparticles from a thin TiO(2) film deposited on the glass substrate. Single particle scattering measurement in both the forward and backward direction was performed by a homemade confocal microscopic system, demonstrating the broadband forward scattering feature. Our research holds great promise for many applications such as light harvesting, photodetection and on-chip photonic devices and so on. |
format | Online Article Text |
id | pubmed-8540540 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85405402021-10-24 Broadband and Highly Directional Visible Light Scattering by Laser-Splashed Lossless TiO(2) Nanoparticles Zhang, Yinan Chen, Shiren Han, Jing Molecules Article All-dielectric nanoparticles, as the counterpart of metallic nanostructures have recently attracted significant interest in manipulating light-matter interaction at a nanoscale. Directional scattering, as an important property of nanoparticles, has been investigated in traditional high refractive index materials, such as silicon, germanium and gallium arsenide in a narrow band range. Here in this paper, we demonstrate that a broadband forward scattering across the entire visible range can be achieved by the low loss TiO(2) nanoparticles with moderate refractive index. This mainly stems from the optical interferences between the broadband electric dipole and the magnetic dipole modes. The forward/backward scattering ratio reaches maximum value at the wavelengths satisfying the first Kerker’s condition. Experimentally, the femtosecond pulsed laser was employed to splash different-sized nanoparticles from a thin TiO(2) film deposited on the glass substrate. Single particle scattering measurement in both the forward and backward direction was performed by a homemade confocal microscopic system, demonstrating the broadband forward scattering feature. Our research holds great promise for many applications such as light harvesting, photodetection and on-chip photonic devices and so on. MDPI 2021-10-10 /pmc/articles/PMC8540540/ /pubmed/34684687 http://dx.doi.org/10.3390/molecules26206106 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Yinan Chen, Shiren Han, Jing Broadband and Highly Directional Visible Light Scattering by Laser-Splashed Lossless TiO(2) Nanoparticles |
title | Broadband and Highly Directional Visible Light Scattering by Laser-Splashed Lossless TiO(2) Nanoparticles |
title_full | Broadband and Highly Directional Visible Light Scattering by Laser-Splashed Lossless TiO(2) Nanoparticles |
title_fullStr | Broadband and Highly Directional Visible Light Scattering by Laser-Splashed Lossless TiO(2) Nanoparticles |
title_full_unstemmed | Broadband and Highly Directional Visible Light Scattering by Laser-Splashed Lossless TiO(2) Nanoparticles |
title_short | Broadband and Highly Directional Visible Light Scattering by Laser-Splashed Lossless TiO(2) Nanoparticles |
title_sort | broadband and highly directional visible light scattering by laser-splashed lossless tio(2) nanoparticles |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540540/ https://www.ncbi.nlm.nih.gov/pubmed/34684687 http://dx.doi.org/10.3390/molecules26206106 |
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