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...
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| Format: | Article |
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American Association for the Advancement of Science (AAAS)
2018
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| Online Access: | http://hdl.handle.net/1721.1/113686 https://orcid.org/0000-0001-8651-7438 https://orcid.org/0000-0002-7572-4594 https://orcid.org/0000-0002-7184-5831 |
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| author | Kaminer, Ido Miller, Owen D. Buljan, Hrvoje Ilic, Ognjen Zhen, Bo Soljacic, Marin |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Kaminer, Ido Miller, Owen D. Buljan, Hrvoje Ilic, Ognjen Zhen, Bo Soljacic, Marin |
| author_sort | Kaminer, Ido |
| collection | MIT |
| 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. |
| first_indexed | 2024-09-23T09:36:57Z |
| format | Article |
| id | mit-1721.1/113686 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:36:57Z |
| publishDate | 2018 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | dspace |
| spelling | mit-1721.1/1136862022-09-30T15:42:59Z Topologically enabled optical nanomotors Kaminer, Ido Miller, Owen D. Buljan, Hrvoje Ilic, Ognjen Zhen, Bo Soljacic, Marin Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Research Laboratory of Electronics Ilic, Ognjen Zhen, Bo Soljacic, Marin 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. Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies (Contract W911NF-13-D-0001) National Science Foundation (U.S.) (Award DMR-1419807) 2018-02-15T16:27:49Z 2018-02-15T16:27:49Z 2016-11 2017-06 2018-02-09T18:50:23Z Article http://purl.org/eprint/type/JournalArticle 2375-2548 http://hdl.handle.net/1721.1/113686 Ilic, Ognjen et al. “Topologically Enabled Optical Nanomotors.” Science Advances 3, 6 (June 2017): e1602738 © 2017 The Authors https://orcid.org/0000-0001-8651-7438 https://orcid.org/0000-0002-7572-4594 https://orcid.org/0000-0002-7184-5831 http://dx.doi.org/10.1126/SCIADV.1602738 Science Advances Attribution-NonCommercial 2.0 Generic (CC BY-NC 2.0) https://creativecommons.org/licenses/by-nc/2.0/ application/pdf American Association for the Advancement of Science (AAAS) |
| spellingShingle | Kaminer, Ido Miller, Owen D. Buljan, Hrvoje Ilic, Ognjen Zhen, Bo Soljacic, 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 |
| url | http://hdl.handle.net/1721.1/113686 https://orcid.org/0000-0001-8651-7438 https://orcid.org/0000-0002-7572-4594 https://orcid.org/0000-0002-7184-5831 |
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