Flexible engineering of circular dichroism enabled by chiral surface lattice resonances
Engineering the chiroptical responses of artificial nanostructures is vital for realizing applications in the fields of optical devices, enantioselective separation, and bio-sensing. Here, by utilizing the nano-kirigami based meta-molecule arrays, the flexible engineering of circular dichroism (CD)...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-11-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0118263 |
| _version_ | 1797947420053602304 |
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| author | Shuqi Qiao Qinghua Liang Xiaochen Zhang Xing Liu Shuai Feng Chang-Yin Ji Honglian Guo Jiafang Li |
| author_facet | Shuqi Qiao Qinghua Liang Xiaochen Zhang Xing Liu Shuai Feng Chang-Yin Ji Honglian Guo Jiafang Li |
| author_sort | Shuqi Qiao |
| collection | DOAJ |
| description | Engineering the chiroptical responses of artificial nanostructures is vital for realizing applications in the fields of optical devices, enantioselective separation, and bio-sensing. Here, by utilizing the nano-kirigami based meta-molecule arrays, the flexible engineering of circular dichroism (CD) is achieved in the near-infrared wavelength region by the excitation of chiral surface lattice resonances (SLRs). It is found that the chiral SLRs can be flexibly tailored by a tiny structural perturbation. As a result, the wavelength, intensity, and sign of CD peak/dip can be abruptly engineered. Specifically, a CD peak with the value of +0.44 is evolved into a CD dip with an intensity of −0.66 when the etching silt length of the meta-molecules is simply decreased by 190 nm. Importantly, such CD reversal is experimentally demonstrated with the nano-kirigami method without requiring the inversion of geometric chirality. Moreover, it is found that the asymmetric dielectric environment around the meta-molecules can significantly suppress the chiral SLRs, providing an insightful understanding of the chiral SLR. Such flexible tailoring of the CD with chiral SLRs paves a versatile way toward the manipulation of chiral light–matter interactions and chiroptical functional devices. |
| first_indexed | 2024-04-10T21:27:31Z |
| format | Article |
| id | doaj.art-ba67e812c3e140bebfcbba643e6b9d8d |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-04-10T21:27:31Z |
| publishDate | 2022-11-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-ba67e812c3e140bebfcbba643e6b9d8d2023-01-19T16:30:00ZengAIP Publishing LLCAPL Photonics2378-09672022-11-01711116104116104-910.1063/5.0118263Flexible engineering of circular dichroism enabled by chiral surface lattice resonancesShuqi Qiao0Qinghua Liang1Xiaochen Zhang2Xing Liu3Shuai Feng4Chang-Yin Ji5Honglian Guo6Jiafang Li7School of Science, Minzu University of China, Beijing 100081, ChinaKey Lab of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education), Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, and School of Physics, Beijing Institute of Technology, Beijing 100081, ChinaKey Lab of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education), Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, and School of Physics, Beijing Institute of Technology, Beijing 100081, ChinaKey Lab of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education), Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, and School of Physics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Science, Minzu University of China, Beijing 100081, ChinaKey Lab of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education), Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, and School of Physics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Science, Minzu University of China, Beijing 100081, ChinaKey Lab of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education), Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, and School of Physics, Beijing Institute of Technology, Beijing 100081, ChinaEngineering the chiroptical responses of artificial nanostructures is vital for realizing applications in the fields of optical devices, enantioselective separation, and bio-sensing. Here, by utilizing the nano-kirigami based meta-molecule arrays, the flexible engineering of circular dichroism (CD) is achieved in the near-infrared wavelength region by the excitation of chiral surface lattice resonances (SLRs). It is found that the chiral SLRs can be flexibly tailored by a tiny structural perturbation. As a result, the wavelength, intensity, and sign of CD peak/dip can be abruptly engineered. Specifically, a CD peak with the value of +0.44 is evolved into a CD dip with an intensity of −0.66 when the etching silt length of the meta-molecules is simply decreased by 190 nm. Importantly, such CD reversal is experimentally demonstrated with the nano-kirigami method without requiring the inversion of geometric chirality. Moreover, it is found that the asymmetric dielectric environment around the meta-molecules can significantly suppress the chiral SLRs, providing an insightful understanding of the chiral SLR. Such flexible tailoring of the CD with chiral SLRs paves a versatile way toward the manipulation of chiral light–matter interactions and chiroptical functional devices.http://dx.doi.org/10.1063/5.0118263 |
| spellingShingle | Shuqi Qiao Qinghua Liang Xiaochen Zhang Xing Liu Shuai Feng Chang-Yin Ji Honglian Guo Jiafang Li Flexible engineering of circular dichroism enabled by chiral surface lattice resonances APL Photonics |
| title | Flexible engineering of circular dichroism enabled by chiral surface lattice resonances |
| title_full | Flexible engineering of circular dichroism enabled by chiral surface lattice resonances |
| title_fullStr | Flexible engineering of circular dichroism enabled by chiral surface lattice resonances |
| title_full_unstemmed | Flexible engineering of circular dichroism enabled by chiral surface lattice resonances |
| title_short | Flexible engineering of circular dichroism enabled by chiral surface lattice resonances |
| title_sort | flexible engineering of circular dichroism enabled by chiral surface lattice resonances |
| url | http://dx.doi.org/10.1063/5.0118263 |
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