Chiral-magic angle of nanoimprint meta-device

Mu Ku  Chen; Jing Cheng Zhang; Cheuk Wai Leung; Linshan Sun; Yubin Fan; Yao Liang; Jin Yao; Xiaoyuan Liu; Jiaqi Yuan; Yuanhao Xu; Din Ping Tsai; Stella W. Pang

doi:10.1515/nanoph-2022-0733

Chiral-magic angle of nanoimprint meta-device

Mu Ku Chen (Co-first Author)
, Jing Cheng Zhang (Co-first Author)
, Cheuk Wai Leung (Co-first Author)
, Linshan Sun
, Yubin Fan
, Yao Liang
, Jin Yao
, Xiaoyuan Liu
, Jiaqi Yuan
, Yuanhao Xu
, Din Ping Tsai^*
, Stella W. Pang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

26 Citations (Scopus)

87 Downloads (CityUHK Scholars)

Abstract

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. © 2023 the author(s).

Original language	English
Pages (from-to)	2479–2490
Journal	Nanophotonics
Volume	12
Issue number	13
Online published	18 Jan 2023
DOIs	https://doi.org/10.1515/nanoph-2022-0733
Publication status	Published - Jun 2023

Funding

The authors acknowledge financial support from the University Grants Committee / Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. AoE/P-502/20 and GRF Project: 11212519, 11207620, 11207821, 11310522 and 15303521), the Shenzhen Science and Technology Innovation Commission (Grant No. SGDX2019081623281169), the Department of Science and Technology of Guangdong Province (2020B1515120073), the City University of Hong Kong (Grant No. 9380131), and the Center for Biosystems, Neuroscience, and Nanotechnology of City University of Hong Kong (9360148, 9380062).

Research Keywords

chirality
meta-device
metasurface
Moirépatterns
nanoimprint
twisted bilayer meta-devices

Publisher's Copyright Statement

This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

RGC Funding Information

RGC-funded

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10.1515/nanoph-2022-0733

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title = "Chiral-magic angle of nanoimprint meta-device",

abstract = "The magic angle of Twistronics has attracted a lot of attention because of its peculiar electrical characteristics. Moir{\'e} patterns formed by the superlattice of a twisted bilayer change overall physical properties. Circular dichroism can also be manipulated through the generated moir{\'e} 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 moir{\'e} 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. {\textcopyright} 2023 the author(s).",

keywords = "chirality, meta-device, metasurface, Moir{\'e}patterns, nanoimprint, twisted bilayer meta-devices",

author = "Chen, \{Mu Ku\} and Zhang, \{Jing Cheng\} and Leung, \{Cheuk Wai\} and Linshan Sun and Yubin Fan and Yao Liang and Jin Yao and Xiaoyuan Liu and Jiaqi Yuan and Yuanhao Xu and Tsai, \{Din Ping\} and Pang, \{Stella W.\}",

year = "2023",

month = jun,

doi = "10.1515/nanoph-2022-0733",

language = "English",

volume = "12",

pages = "2479–2490",

journal = "Nanophotonics",

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publisher = "De Gruyter",

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TY - JOUR

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AU - Chen, Mu Ku

AU - Zhang, Jing Cheng

AU - Leung, Cheuk Wai

AU - Sun, Linshan

AU - Fan, Yubin

AU - Liang, Yao

AU - Yao, Jin

AU - Liu, Xiaoyuan

AU - Yuan, Jiaqi

AU - Xu, Yuanhao

AU - Tsai, Din Ping

AU - Pang, Stella W.

PY - 2023/6

Y1 - 2023/6

N2 - 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. © 2023 the author(s).

AB - 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. © 2023 the author(s).

KW - chirality

KW - meta-device

KW - metasurface

KW - Moirépatterns

KW - nanoimprint

KW - twisted bilayer meta-devices

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SN - 2192-8606

VL - 12

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EP - 2490

JO - Nanophotonics

JF - Nanophotonics

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ER -

Chiral-magic angle of nanoimprint meta-device

Abstract

Funding

Research Keywords

Publisher's Copyright Statement

RGC Funding Information

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GRF: Meta-lens for Vacuum Ultraviolet Light

AoE(UGC): Meta-optics, Meta-acoustics and Meta-device

SZSTIB-C-HK: 全介質寬色域、高飽和度、高亮度和亞波長分辨率結構色的研究

Cite this

Chiral-magic angle of nanoimprint meta-device

Abstract

Funding

Research Keywords

Publisher's Copyright Statement

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

GRF: Meta-lens for Vacuum Ultraviolet Light

AoE(UGC): Meta-optics, Meta-acoustics and Meta-device

SZSTIB-C-HK: 全介質寬色域、高飽和度、高亮度和亞波長分辨率結構色的研究

Cite this