Cargando…
Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave
Optical pulling force (OPF) can make a nanoparticle (NP) move against the propagation direction of the incident light. Long-distance optical pulling is highly desired for nano-object manipulation, but its realization remains challenging. We propose an NP-in-cavity structure that can be pulled by a s...
Autores principales: | , |
---|---|
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/PMC7314558/ https://www.ncbi.nlm.nih.gov/pubmed/32671206 http://dx.doi.org/10.1126/sciadv.aaz3646 |
_version_ | 1783550085960826880 |
---|---|
author | Lee, E. Luo, T. |
author_facet | Lee, E. Luo, T. |
author_sort | Lee, E. |
collection | PubMed |
description | Optical pulling force (OPF) can make a nanoparticle (NP) move against the propagation direction of the incident light. Long-distance optical pulling is highly desired for nano-object manipulation, but its realization remains challenging. We propose an NP-in-cavity structure that can be pulled by a single plane wave to travel long distances when the spherical cavity wrapping the NP has a refractive index lower than the medium. An electromagnetic multipole analysis shows that NPs made of many common materials can receive the OPF inside a lower index cavity. Using a silica-Au core-shell NP that is encapsulated by a plasmonic nanobubble, we experimentally demonstrate that a single laser can pull the Au NP-in-nanobubble structure for ~0.1 mm. These results may lead to practical applications that can use the optical pulling of NP, such as optically driven nanostructure assembly and nanoswimmers. |
format | Online Article Text |
id | pubmed-7314558 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-73145582020-07-14 Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave Lee, E. Luo, T. Sci Adv Research Articles Optical pulling force (OPF) can make a nanoparticle (NP) move against the propagation direction of the incident light. Long-distance optical pulling is highly desired for nano-object manipulation, but its realization remains challenging. We propose an NP-in-cavity structure that can be pulled by a single plane wave to travel long distances when the spherical cavity wrapping the NP has a refractive index lower than the medium. An electromagnetic multipole analysis shows that NPs made of many common materials can receive the OPF inside a lower index cavity. Using a silica-Au core-shell NP that is encapsulated by a plasmonic nanobubble, we experimentally demonstrate that a single laser can pull the Au NP-in-nanobubble structure for ~0.1 mm. These results may lead to practical applications that can use the optical pulling of NP, such as optically driven nanostructure assembly and nanoswimmers. American Association for the Advancement of Science 2020-05-20 /pmc/articles/PMC7314558/ /pubmed/32671206 http://dx.doi.org/10.1126/sciadv.aaz3646 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 Lee, E. Luo, T. Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave |
title | Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave |
title_full | Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave |
title_fullStr | Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave |
title_full_unstemmed | Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave |
title_short | Long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave |
title_sort | long-distance optical pulling of nanoparticle in a low index cavity using a single plane wave |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7314558/ https://www.ncbi.nlm.nih.gov/pubmed/32671206 http://dx.doi.org/10.1126/sciadv.aaz3646 |
work_keys_str_mv | AT leee longdistanceopticalpullingofnanoparticleinalowindexcavityusingasingleplanewave AT luot longdistanceopticalpullingofnanoparticleinalowindexcavityusingasingleplanewave |