Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials
Chiral metamaterials possess unique optical chiral responses, and the attainment of remarkable intrinsic chirality typically necessitates the disruption of their mirror symmetry to facilitate cross-coupling between electric and magnetic dipoles. However, achieving such symmetry breaking in a flexibl...
| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/179544 |
| _version_ | 1826114507877908480 |
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| author | Chen, Qiang Wu, Yawei She, Yongzhi Zhao, Yilong Yang, Jinlong Chen, Lijuan Liu, Peiwu Wu, Min Zeng, Changgan Qi, Zeming Hu, Chuansheng Liu, Hengjie Xiong, Ying Tian, Yangchao Chen, Yang Cai, Hongbing Pan, Nan Wang, Xiaoping |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Chen, Qiang Wu, Yawei She, Yongzhi Zhao, Yilong Yang, Jinlong Chen, Lijuan Liu, Peiwu Wu, Min Zeng, Changgan Qi, Zeming Hu, Chuansheng Liu, Hengjie Xiong, Ying Tian, Yangchao Chen, Yang Cai, Hongbing Pan, Nan Wang, Xiaoping |
| author_sort | Chen, Qiang |
| collection | NTU |
| description | Chiral metamaterials possess unique optical chiral responses, and the attainment of remarkable intrinsic chirality typically necessitates the disruption of their mirror symmetry to facilitate cross-coupling between electric and magnetic dipoles. However, achieving such symmetry breaking in a flexible and controllable manner remains challenging due to the limited range of applications afforded by available methodologies. Here, a method is proposed for fabricating robust three-dimensional (3D) chiral metamaterials by projecting arbitrary planar chiral metasurfaces onto on-demand height-tunable 3D silicon structures, thereby effectively modulating their optical chiral responses through continuously tuning the degree of cross-coupling between dipoles. Experimental and simulation results demonstrate this approach's ability to precisely control circular dichroism (CD) from a non-chiral state to various activated and enhanced chirality. Enhancing CD with high precision and continuous control manners can naturally provide an advanced opportunity and platform for the future design and actual applications of chiral optical systems. |
| first_indexed | 2024-10-01T03:40:21Z |
| format | Journal Article |
| id | ntu-10356/179544 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:40:21Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1795442024-08-07T06:15:25Z Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials Chen, Qiang Wu, Yawei She, Yongzhi Zhao, Yilong Yang, Jinlong Chen, Lijuan Liu, Peiwu Wu, Min Zeng, Changgan Qi, Zeming Hu, Chuansheng Liu, Hengjie Xiong, Ying Tian, Yangchao Chen, Yang Cai, Hongbing Pan, Nan Wang, Xiaoping School of Physical and Mathematical Sciences Physics 3D chiral metamaterials 3D fabrication Chiral metamaterials possess unique optical chiral responses, and the attainment of remarkable intrinsic chirality typically necessitates the disruption of their mirror symmetry to facilitate cross-coupling between electric and magnetic dipoles. However, achieving such symmetry breaking in a flexible and controllable manner remains challenging due to the limited range of applications afforded by available methodologies. Here, a method is proposed for fabricating robust three-dimensional (3D) chiral metamaterials by projecting arbitrary planar chiral metasurfaces onto on-demand height-tunable 3D silicon structures, thereby effectively modulating their optical chiral responses through continuously tuning the degree of cross-coupling between dipoles. Experimental and simulation results demonstrate this approach's ability to precisely control circular dichroism (CD) from a non-chiral state to various activated and enhanced chirality. Enhancing CD with high precision and continuous control manners can naturally provide an advanced opportunity and platform for the future design and actual applications of chiral optical systems. The authors acknowledge the financial support from the Strategic Priority Research Program of CAS (Grant No. XDC07010000), the MOST of China (Grant No. 2016YFA0200602), the National Natural Science Foundation of China, and the Anhui Initiative in Quantum Information Technologies (Grant No. AHY090200). 2024-08-07T06:15:25Z 2024-08-07T06:15:25Z 2024 Journal Article Chen, Q., Wu, Y., She, Y., Zhao, Y., Yang, J., Chen, L., Liu, P., Wu, M., Zeng, C., Qi, Z., Hu, C., Liu, H., Xiong, Y., Tian, Y., Chen, Y., Cai, H., Pan, N. & Wang, X. (2024). Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials. Advanced Optical Materials, 12(21), 2400593-. https://dx.doi.org/10.1002/adom.202400593 2195-1071 https://hdl.handle.net/10356/179544 10.1002/adom.202400593 2-s2.0-85193062307 21 12 2400593 en Advanced Optical Materials © 2024 Wiley-VCH GmbH. All rights reserved. |
| spellingShingle | Physics 3D chiral metamaterials 3D fabrication Chen, Qiang Wu, Yawei She, Yongzhi Zhao, Yilong Yang, Jinlong Chen, Lijuan Liu, Peiwu Wu, Min Zeng, Changgan Qi, Zeming Hu, Chuansheng Liu, Hengjie Xiong, Ying Tian, Yangchao Chen, Yang Cai, Hongbing Pan, Nan Wang, Xiaoping Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials |
| title | Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials |
| title_full | Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials |
| title_fullStr | Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials |
| title_full_unstemmed | Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials |
| title_short | Continuously geometrical tuning to boost circular dichroism in 3D chiral metamaterials |
| title_sort | continuously geometrical tuning to boost circular dichroism in 3d chiral metamaterials |
| topic | Physics 3D chiral metamaterials 3D fabrication |
| url | https://hdl.handle.net/10356/179544 |
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