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Topologically enabled optical nanomotors
Shaping the topology of light, by way of spin or orbital angular momentum engineering, is a powerful tool to manipulate matter on the nanoscale. Conventionally, such methods focus on shaping the incident beam of light and not the full interaction between the light and the object to be manipulated. W...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5493414/ https://www.ncbi.nlm.nih.gov/pubmed/28695194 http://dx.doi.org/10.1126/sciadv.1602738 |
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author | Ilic, Ognjen Kaminer, Ido Zhen, Bo Miller, Owen D. Buljan, Hrvoje Soljačić, Marin |
author_facet | Ilic, Ognjen Kaminer, Ido Zhen, Bo Miller, Owen D. Buljan, Hrvoje Soljačić, Marin |
author_sort | Ilic, Ognjen |
collection | PubMed |
description | Shaping the topology of light, by way of spin or orbital angular momentum engineering, is a powerful tool to manipulate matter on the nanoscale. Conventionally, such methods focus on shaping the incident beam of light and not the full interaction between the light and the object to be manipulated. We theoretically show that tailoring the topology of the phase space of the light particle interaction is a fundamentally more versatile approach, enabling dynamics that may not be achievable by shaping of the light alone. In this manner, we find that optically asymmetric (Janus) particles can become stable nanoscale motors even in a light field with zero angular momentum. These precessing steady states arise from topologically protected anticrossing behavior of the vortices of the optical torque vector field. Furthermore, by varying the wavelength of the incident light, we can control the number, orientations, and the stability of the spinning states. These results show that the combination of phase-space topology and particle asymmetry can provide a powerful degree of freedom in designing nanoparticles for optimal external manipulation in a range of nano-optomechanical applications. |
format | Online Article Text |
id | pubmed-5493414 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-54934142017-07-10 Topologically enabled optical nanomotors Ilic, Ognjen Kaminer, Ido Zhen, Bo Miller, Owen D. Buljan, Hrvoje Soljačić, Marin Sci Adv Research Articles Shaping the topology of light, by way of spin or orbital angular momentum engineering, is a powerful tool to manipulate matter on the nanoscale. Conventionally, such methods focus on shaping the incident beam of light and not the full interaction between the light and the object to be manipulated. We theoretically show that tailoring the topology of the phase space of the light particle interaction is a fundamentally more versatile approach, enabling dynamics that may not be achievable by shaping of the light alone. In this manner, we find that optically asymmetric (Janus) particles can become stable nanoscale motors even in a light field with zero angular momentum. These precessing steady states arise from topologically protected anticrossing behavior of the vortices of the optical torque vector field. Furthermore, by varying the wavelength of the incident light, we can control the number, orientations, and the stability of the spinning states. These results show that the combination of phase-space topology and particle asymmetry can provide a powerful degree of freedom in designing nanoparticles for optimal external manipulation in a range of nano-optomechanical applications. American Association for the Advancement of Science 2017-06-30 /pmc/articles/PMC5493414/ /pubmed/28695194 http://dx.doi.org/10.1126/sciadv.1602738 Text en Copyright © 2017 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 Ilic, Ognjen Kaminer, Ido Zhen, Bo Miller, Owen D. Buljan, Hrvoje Soljačić, Marin Topologically enabled optical nanomotors |
title | Topologically enabled optical nanomotors |
title_full | Topologically enabled optical nanomotors |
title_fullStr | Topologically enabled optical nanomotors |
title_full_unstemmed | Topologically enabled optical nanomotors |
title_short | Topologically enabled optical nanomotors |
title_sort | topologically enabled optical nanomotors |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5493414/ https://www.ncbi.nlm.nih.gov/pubmed/28695194 http://dx.doi.org/10.1126/sciadv.1602738 |
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