Chiral-magic angle of nanoimprint meta-device
The magic angle of Twistronics has attracted a lot of attention because of its peculiar electrical characteristics. Moiré patterns formed by the superlattice of a twisted bilayer change overall physical properties. Circular dichroism can also be manipulated through the generated moiré pattern. Here,...
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2023-01-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2022-0733 |
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| _version_ | 1832570412670648320 |
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| author | Chen Mu Ku Zhang Jing Cheng Leung Cheuk Wai Sun Linshan Fan Yubin Liang Yao Yao Jin Liu Xiaoyuan Yuan Jiaqi Xu Yuanhao Tsai Din Ping Pang Stella W. |
| author_facet | Chen Mu Ku Zhang Jing Cheng Leung Cheuk Wai Sun Linshan Fan Yubin Liang Yao Yao Jin Liu Xiaoyuan Yuan Jiaqi Xu Yuanhao Tsai Din Ping Pang Stella W. |
| author_sort | Chen Mu Ku |
| collection | DOAJ |
| description | The magic angle of Twistronics has attracted a lot of attention because of its peculiar electrical characteristics. Moiré patterns formed by the superlattice of a twisted bilayer change overall physical properties. Circular dichroism can also be manipulated through the generated moiré pattern. Here, we report a polymer-based twisted bilayer meta-device fabricated by multilayer nanoimprint technology and study the magic angle of chirality. The superlattice of the bilayer meta-device creates moiré patterns and brings unique chiral optical responses. The bilayer nanoimprint technology is developed for metasurfaces with relative twist angles. Via the twist angle control, polymer materials with a low refractive index can manipulate the electric field of the light and reveal the chiral magic angle. Moreover, the shape of the meta-atoms plays a key role in chiral magic angle tuning. The chirality engineering by the reported nanoimprint technology and chiral meta-devices may contribute to applications in chiral imaging, biomedical sensing, lasing, and tunable optical devices. |
| format | Article |
| id | doaj-art-2239ebb156c14f71a2d00257380e21d6 |
| institution | Kabale University |
| issn | 2192-8614 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-2239ebb156c14f71a2d00257380e21d62025-02-02T15:46:12ZengDe GruyterNanophotonics2192-86142023-01-0112132479249010.1515/nanoph-2022-0733Chiral-magic angle of nanoimprint meta-deviceChen Mu Ku0Zhang Jing Cheng1Leung Cheuk Wai2Sun Linshan3Fan Yubin4Liang Yao5Yao Jin6Liu Xiaoyuan7Yuan Jiaqi8Xu Yuanhao9Tsai Din Ping10Pang Stella W.11Department of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaDepartment of Electrical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, ChinaThe magic angle of Twistronics has attracted a lot of attention because of its peculiar electrical characteristics. Moiré patterns formed by the superlattice of a twisted bilayer change overall physical properties. Circular dichroism can also be manipulated through the generated moiré pattern. Here, we report a polymer-based twisted bilayer meta-device fabricated by multilayer nanoimprint technology and study the magic angle of chirality. The superlattice of the bilayer meta-device creates moiré patterns and brings unique chiral optical responses. The bilayer nanoimprint technology is developed for metasurfaces with relative twist angles. Via the twist angle control, polymer materials with a low refractive index can manipulate the electric field of the light and reveal the chiral magic angle. Moreover, the shape of the meta-atoms plays a key role in chiral magic angle tuning. The chirality engineering by the reported nanoimprint technology and chiral meta-devices may contribute to applications in chiral imaging, biomedical sensing, lasing, and tunable optical devices.https://doi.org/10.1515/nanoph-2022-0733chiralitymeta-devicemetasurfacemoirépatternsnanoimprinttwisted bilayer meta-devices |
| spellingShingle | Chen Mu Ku Zhang Jing Cheng Leung Cheuk Wai Sun Linshan Fan Yubin Liang Yao Yao Jin Liu Xiaoyuan Yuan Jiaqi Xu Yuanhao Tsai Din Ping Pang Stella W. Chiral-magic angle of nanoimprint meta-device Nanophotonics chirality meta-device metasurface moirépatterns nanoimprint twisted bilayer meta-devices |
| title | Chiral-magic angle of nanoimprint meta-device |
| title_full | Chiral-magic angle of nanoimprint meta-device |
| title_fullStr | Chiral-magic angle of nanoimprint meta-device |
| title_full_unstemmed | Chiral-magic angle of nanoimprint meta-device |
| title_short | Chiral-magic angle of nanoimprint meta-device |
| title_sort | chiral magic angle of nanoimprint meta device |
| topic | chirality meta-device metasurface moirépatterns nanoimprint twisted bilayer meta-devices |
| url | https://doi.org/10.1515/nanoph-2022-0733 |
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