A super-oscillatory step-zoom metalens for visible light
In recent years, the super-oscillation method based on the fine interference of optical fields has been successfully applied to sub-diffraction focusing and super-resolution imaging. However, most previously reported works only describe static super-oscillatory lenses. Super-oscillatory lenses using...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Beilstein-Institut
2022-10-01
|
| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.13.101 |
| _version_ | 1811223249243078656 |
|---|---|
| author | Yi Zhou Chao Yan Peng Tian Zhu Li Yu He Bin Fan Zhiyong Wang Yao Deng Dongliang Tang |
| author_facet | Yi Zhou Chao Yan Peng Tian Zhu Li Yu He Bin Fan Zhiyong Wang Yao Deng Dongliang Tang |
| author_sort | Yi Zhou |
| collection | DOAJ |
| description | In recent years, the super-oscillation method based on the fine interference of optical fields has been successfully applied to sub-diffraction focusing and super-resolution imaging. However, most previously reported works only describe static super-oscillatory lenses. Super-oscillatory lenses using phase-change materials still have issues regarding dynamic tunability and inflexibility. Therefore, it is vital to develop a flexible and tunable modulation approach for super-oscillatory lenses. In this paper, we propose a super-oscillatory step-zoom lens based on the geometric phase principle, which can switch between two focal lengths within a certain field of view. The designed device consists of nanopillars with high efficiency of up to 80%, and the super-resolution focusing with 0.84 times of diffraction limit is verified by the full-wave simulation. The proposed method bears the potential to become a useful tool for label-free super-resolution microscopic imaging and optical precision machining. |
| first_indexed | 2024-04-12T08:29:47Z |
| format | Article |
| id | doaj.art-9d57aa5eb38941ccbf0805bb589b6c1c |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-04-12T08:29:47Z |
| publishDate | 2022-10-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-9d57aa5eb38941ccbf0805bb589b6c1c2022-12-22T03:40:15ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862022-10-011311220122710.3762/bjnano.13.1012190-4286-13-101A super-oscillatory step-zoom metalens for visible lightYi Zhou0Chao Yan1Peng Tian2Zhu Li3Yu He4Bin Fan5Zhiyong Wang6Yao Deng7Dongliang Tang8Key Laboratory of Optoelectronic Technology and Systems (Chongqing University), Ministry of Education, School of Optoelectronic Engineering, Chongqing University, 174 Shazheng Street, Shapingba, Chongqing 400044, China Sichuan Jiuzhou Electric Group Co., Ltd, Mianyang 621000, ChinaSchool of Mechanical Engineering, Sichuan University, Chengdu, Sichuan, 610065, China Sichuan Jiuzhou Electric Group Co., Ltd, Mianyang 621000, ChinaState Key Laboratory of Optical Technologies for Micro-fabrication, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China State Key Laboratory of Optical Technologies for Micro-fabrication, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan 610209, China Sichuan Jiuzhou Electric Group Co., Ltd, Mianyang 621000, ChinaSichuan Jiuzhou Electric Group Co., Ltd, Mianyang 621000, ChinaThe Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, China In recent years, the super-oscillation method based on the fine interference of optical fields has been successfully applied to sub-diffraction focusing and super-resolution imaging. However, most previously reported works only describe static super-oscillatory lenses. Super-oscillatory lenses using phase-change materials still have issues regarding dynamic tunability and inflexibility. Therefore, it is vital to develop a flexible and tunable modulation approach for super-oscillatory lenses. In this paper, we propose a super-oscillatory step-zoom lens based on the geometric phase principle, which can switch between two focal lengths within a certain field of view. The designed device consists of nanopillars with high efficiency of up to 80%, and the super-resolution focusing with 0.84 times of diffraction limit is verified by the full-wave simulation. The proposed method bears the potential to become a useful tool for label-free super-resolution microscopic imaging and optical precision machining.https://doi.org/10.3762/bjnano.13.101geometric phasephase-change materialstep-zoom lenssuper-oscillatory |
| spellingShingle | Yi Zhou Chao Yan Peng Tian Zhu Li Yu He Bin Fan Zhiyong Wang Yao Deng Dongliang Tang A super-oscillatory step-zoom metalens for visible light Beilstein Journal of Nanotechnology geometric phase phase-change material step-zoom lens super-oscillatory |
| title | A super-oscillatory step-zoom metalens for visible light |
| title_full | A super-oscillatory step-zoom metalens for visible light |
| title_fullStr | A super-oscillatory step-zoom metalens for visible light |
| title_full_unstemmed | A super-oscillatory step-zoom metalens for visible light |
| title_short | A super-oscillatory step-zoom metalens for visible light |
| title_sort | super oscillatory step zoom metalens for visible light |
| topic | geometric phase phase-change material step-zoom lens super-oscillatory |
| url | https://doi.org/10.3762/bjnano.13.101 |
| work_keys_str_mv | AT yizhou asuperoscillatorystepzoommetalensforvisiblelight AT chaoyan asuperoscillatorystepzoommetalensforvisiblelight AT pengtian asuperoscillatorystepzoommetalensforvisiblelight AT zhuli asuperoscillatorystepzoommetalensforvisiblelight AT yuhe asuperoscillatorystepzoommetalensforvisiblelight AT binfan asuperoscillatorystepzoommetalensforvisiblelight AT zhiyongwang asuperoscillatorystepzoommetalensforvisiblelight AT yaodeng asuperoscillatorystepzoommetalensforvisiblelight AT dongliangtang asuperoscillatorystepzoommetalensforvisiblelight AT yizhou superoscillatorystepzoommetalensforvisiblelight AT chaoyan superoscillatorystepzoommetalensforvisiblelight AT pengtian superoscillatorystepzoommetalensforvisiblelight AT zhuli superoscillatorystepzoommetalensforvisiblelight AT yuhe superoscillatorystepzoommetalensforvisiblelight AT binfan superoscillatorystepzoommetalensforvisiblelight AT zhiyongwang superoscillatorystepzoommetalensforvisiblelight AT yaodeng superoscillatorystepzoommetalensforvisiblelight AT dongliangtang superoscillatorystepzoommetalensforvisiblelight |