Topologically protected optical pulling force on synthetic particles through photonic nanojet
A dielectric microsphere concentrates light into a photonic nanojet (PNJ), and swims towards the near-infrared laser in response to the nanojet-mediated force. In contrast, a Janus particle with an opaque metal layer was thought to be impossible to concentrate light into a stable nanojet. However, t...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2024-01-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2023-0740 |
| _version_ | 1797323389825712128 |
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| author | Ren Yu-Xuan Frueh Johannes Zhang Zhisen Rutkowski Sven Zhou Yi Mao Huade Kong Cihang Tverdokhlebov Sergei I. Liu Wen Wong Kenneth K. Y. Li Bo |
| author_facet | Ren Yu-Xuan Frueh Johannes Zhang Zhisen Rutkowski Sven Zhou Yi Mao Huade Kong Cihang Tverdokhlebov Sergei I. Liu Wen Wong Kenneth K. Y. Li Bo |
| author_sort | Ren Yu-Xuan |
| collection | DOAJ |
| description | A dielectric microsphere concentrates light into a photonic nanojet (PNJ), and swims towards the near-infrared laser in response to the nanojet-mediated force. In contrast, a Janus particle with an opaque metal layer was thought to be impossible to concentrate light into a stable nanojet. However, the Janus particle may experience optical torque owing to the inhomogeneous composition on both sides even in linearly polarized non-resonant light. Herein, we report on topologically protected PNJ produced by a synthetic Janus particle, and observed the backaction force on the Janus particle. Due to symmetry, the counter-propagating beams can both form PNJ on the respective opposite sides, and pull Janus particles towards respective sources. Furthermore, we unveil that the hysteresis on backaction force with respect to the injection power also exists on synthetic Janus particle compared with their dielectric counterparts. Additionally, the magnitude of the backaction force varies between power increase and decrease stages even with the same laser power. We anticipate that the observation offers great possibilities to pull irregular particles by concentrating light with the particle, and such scheme may be applied for parallel particle manipulation and classification. |
| first_indexed | 2024-03-08T05:28:52Z |
| format | Article |
| id | doaj.art-562a1098da714316a10bcdb667434bb2 |
| institution | Directory Open Access Journal |
| issn | 2192-8606 2192-8614 |
| language | English |
| last_indexed | 2024-03-08T05:28:52Z |
| publishDate | 2024-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-562a1098da714316a10bcdb667434bb22024-02-06T09:08:40ZengDe GruyterNanophotonics2192-86062192-86142024-01-0113223924910.1515/nanoph-2023-0740Topologically protected optical pulling force on synthetic particles through photonic nanojetRen Yu-Xuan0Frueh Johannes1Zhang Zhisen2Rutkowski Sven3Zhou Yi4Mao Huade5Kong Cihang6Tverdokhlebov Sergei I.7Liu Wen8Wong Kenneth K. Y.9Li Bo10Institute for Translational Brain Research, MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200032, ChinaWeinberg Research Center, School of Nuclear Science & Engineering, National Research Tomsk Polytechnic University, 30 Lenin Avenue, 634050Tomsk, Russian FederationInstitute of Carbon Neutrality, ShanghaiTech University, Shanghai, 201210, ChinaWeinberg Research Center, School of Nuclear Science & Engineering, National Research Tomsk Polytechnic University, 30 Lenin Avenue, 634050Tomsk, Russian FederationDepartment of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, SAR999077, ChinaDepartment of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, SAR999077, ChinaInstitute for Translational Brain Research, MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200032, ChinaWeinberg Research Center, School of Nuclear Science & Engineering, National Research Tomsk Polytechnic University, 30 Lenin Avenue, 634050Tomsk, Russian FederationDepartment of Optics and Optical Engineering, University of Science and Technology of China, Hefei, 230026, ChinaDepartment of Electrical and Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, SAR999077, ChinaInstitute for Translational Brain Research, MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200032, ChinaA dielectric microsphere concentrates light into a photonic nanojet (PNJ), and swims towards the near-infrared laser in response to the nanojet-mediated force. In contrast, a Janus particle with an opaque metal layer was thought to be impossible to concentrate light into a stable nanojet. However, the Janus particle may experience optical torque owing to the inhomogeneous composition on both sides even in linearly polarized non-resonant light. Herein, we report on topologically protected PNJ produced by a synthetic Janus particle, and observed the backaction force on the Janus particle. Due to symmetry, the counter-propagating beams can both form PNJ on the respective opposite sides, and pull Janus particles towards respective sources. Furthermore, we unveil that the hysteresis on backaction force with respect to the injection power also exists on synthetic Janus particle compared with their dielectric counterparts. Additionally, the magnitude of the backaction force varies between power increase and decrease stages even with the same laser power. We anticipate that the observation offers great possibilities to pull irregular particles by concentrating light with the particle, and such scheme may be applied for parallel particle manipulation and classification.https://doi.org/10.1515/nanoph-2023-0740photonic nanojetoptical pulling forcetopological photonicsnanomotorjanus particleoptical trapping and manipulation |
| spellingShingle | Ren Yu-Xuan Frueh Johannes Zhang Zhisen Rutkowski Sven Zhou Yi Mao Huade Kong Cihang Tverdokhlebov Sergei I. Liu Wen Wong Kenneth K. Y. Li Bo Topologically protected optical pulling force on synthetic particles through photonic nanojet Nanophotonics photonic nanojet optical pulling force topological photonics nanomotor janus particle optical trapping and manipulation |
| title | Topologically protected optical pulling force on synthetic particles through photonic nanojet |
| title_full | Topologically protected optical pulling force on synthetic particles through photonic nanojet |
| title_fullStr | Topologically protected optical pulling force on synthetic particles through photonic nanojet |
| title_full_unstemmed | Topologically protected optical pulling force on synthetic particles through photonic nanojet |
| title_short | Topologically protected optical pulling force on synthetic particles through photonic nanojet |
| title_sort | topologically protected optical pulling force on synthetic particles through photonic nanojet |
| topic | photonic nanojet optical pulling force topological photonics nanomotor janus particle optical trapping and manipulation |
| url | https://doi.org/10.1515/nanoph-2023-0740 |
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