Optical forces in photonic Weyl system
Topological photonics has attracted extensive attention, since it allows for a platform to explore and exploit versatile nano-optics systems. In particular, the ideal Weyl metamaterials have recently been demonstrated with fascinating phenomena such as chiral zero mode and negative refraction. In th...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ac5e88 |
| _version_ | 1827871103734775808 |
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| author | Yang Yang Hsun-Chi Chan Ke Bi Gaoyan Duan Maoxin Liu Haoyi Wang Liangsheng Li |
| author_facet | Yang Yang Hsun-Chi Chan Ke Bi Gaoyan Duan Maoxin Liu Haoyi Wang Liangsheng Li |
| author_sort | Yang Yang |
| collection | DOAJ |
| description | Topological photonics has attracted extensive attention, since it allows for a platform to explore and exploit versatile nano-optics systems. In particular, the ideal Weyl metamaterials have recently been demonstrated with fascinating phenomena such as chiral zero mode and negative refraction. In this work, we apply the photonic Weyl metamateirals into the optical tweezers. Based on the effective medium approach, the optical force generated by the body state of the Weyl metamaterial is systematically investigated. Interestingly, theoretical results show that for oblique incidence, the optical force spectra present a valley around Weyl frequency with zero magnitude exactly at the Weyl frequency, and the forces show strong optical circular dichroism. In addition, due to the bi-anisotropic properties, transmissions through the Weyl metamaterial exhibit a significant linear-to-circular polarization conversion and the transmitted wavefront acquires spin momenta of photons, which induces abnormal force on chiral particles. Our study may provide potential applications in the optical manipulations, polarization conversions, and wavefront engineering optics. |
| first_indexed | 2024-03-12T16:05:17Z |
| format | Article |
| id | doaj.art-1d8da57d642d416f886efa5c70033a07 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:05:17Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-1d8da57d642d416f886efa5c70033a072023-08-09T14:22:02ZengIOP PublishingNew Journal of Physics1367-26302022-01-0124404301910.1088/1367-2630/ac5e88Optical forces in photonic Weyl systemYang Yang0Hsun-Chi Chan1https://orcid.org/0000-0002-9940-259XKe Bi2Gaoyan Duan3Maoxin Liu4https://orcid.org/0000-0003-4540-4554Haoyi Wang5Liangsheng Li6State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, People’s Republic of ChinaInstitute of Microscale Optoelectronics, Shenzhen University , Shenzhen 518060, People’s Republic of China; Department of Physics, The University of Hong Kong , Hong Kong, People’s Republic of ChinaState Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, People’s Republic of China; Beijing University of Posts and Telecommunications Research Institute , Shenzhen 518057, People’s Republic of ChinaState Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, People’s Republic of ChinaState Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, People’s Republic of ChinaState Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, People’s Republic of ChinaScience and Technology on Electromagnetic Scattering Laboratory , Beijing 100854, People’s Republic of ChinaTopological photonics has attracted extensive attention, since it allows for a platform to explore and exploit versatile nano-optics systems. In particular, the ideal Weyl metamaterials have recently been demonstrated with fascinating phenomena such as chiral zero mode and negative refraction. In this work, we apply the photonic Weyl metamateirals into the optical tweezers. Based on the effective medium approach, the optical force generated by the body state of the Weyl metamaterial is systematically investigated. Interestingly, theoretical results show that for oblique incidence, the optical force spectra present a valley around Weyl frequency with zero magnitude exactly at the Weyl frequency, and the forces show strong optical circular dichroism. In addition, due to the bi-anisotropic properties, transmissions through the Weyl metamaterial exhibit a significant linear-to-circular polarization conversion and the transmitted wavefront acquires spin momenta of photons, which induces abnormal force on chiral particles. Our study may provide potential applications in the optical manipulations, polarization conversions, and wavefront engineering optics.https://doi.org/10.1088/1367-2630/ac5e88metamaterialstopological photonicsoptical forceWeyl semimetalnegative refraction |
| spellingShingle | Yang Yang Hsun-Chi Chan Ke Bi Gaoyan Duan Maoxin Liu Haoyi Wang Liangsheng Li Optical forces in photonic Weyl system New Journal of Physics metamaterials topological photonics optical force Weyl semimetal negative refraction |
| title | Optical forces in photonic Weyl system |
| title_full | Optical forces in photonic Weyl system |
| title_fullStr | Optical forces in photonic Weyl system |
| title_full_unstemmed | Optical forces in photonic Weyl system |
| title_short | Optical forces in photonic Weyl system |
| title_sort | optical forces in photonic weyl system |
| topic | metamaterials topological photonics optical force Weyl semimetal negative refraction |
| url | https://doi.org/10.1088/1367-2630/ac5e88 |
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