Optimizing Metasurface-Component Performance by Improving Transmittance and Phase Match of the Nanopillars
In the propagation phase of a dielectric metasurface, there are two important problems. Firstly, the range of transmittance of the nanopillars for a building metasurface is usually between 60% and 100%, which reduces the metasurface’s overall transmittance and affects the uniformity of the transmitt...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/12/21/3720 |
| _version_ | 1827645863709638656 |
|---|---|
| author | Xiaohong Sun Shuang Huo He Yang Mengmeng Yan Jianing Zhai Saili Zhao Yong Zeng |
| author_facet | Xiaohong Sun Shuang Huo He Yang Mengmeng Yan Jianing Zhai Saili Zhao Yong Zeng |
| author_sort | Xiaohong Sun |
| collection | DOAJ |
| description | In the propagation phase of a dielectric metasurface, there are two important problems. Firstly, the range of transmittance of the nanopillars for a building metasurface is usually between 60% and 100%, which reduces the metasurface’s overall transmittance and affects the uniformity of the transmitted light. Secondly, the realistic phase provided by the nanopillar cannot be matched very well with the theoretical phase at each lattice location.The phase difference (between a realistic phase and theoretical phase) may reach tens of degrees. Here, we propose an interesting method to solve these problems. With this new method, a metalens is designed in this paper. The nanopillars for building the metalens have transmittance over 0.95, which increases the metalens transmittance and improves the light uniformity. In addition, with the new method, the phase differences of all elements in the metalens can also be reduced to be below 0.05°, decreasing the metalens spherical aberration dramatically. This method not only helps us to optimize the metalens but also provides a useful way for designing high-quality metasurfaces. |
| first_indexed | 2024-03-09T18:47:06Z |
| format | Article |
| id | doaj.art-829ed5b27f2c47e9a137514fb2236309 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T18:47:06Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-829ed5b27f2c47e9a137514fb22363092023-11-24T06:08:06ZengMDPI AGNanomaterials2079-49912022-10-011221372010.3390/nano12213720Optimizing Metasurface-Component Performance by Improving Transmittance and Phase Match of the NanopillarsXiaohong Sun0Shuang Huo1He Yang2Mengmeng Yan3Jianing Zhai4Saili Zhao5Yong Zeng6Henan Key Laboratory of Laser and Optoelectronic Information Technology, The School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, ChinaHenan Key Laboratory of Laser and Optoelectronic Information Technology, The School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, ChinaHenan Key Laboratory of Laser and Optoelectronic Information Technology, The School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, ChinaHenan Key Laboratory of Laser and Optoelectronic Information Technology, The School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, ChinaHenan Key Laboratory of Laser and Optoelectronic Information Technology, The School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, ChinaHenan Key Laboratory of Laser and Optoelectronic Information Technology, The School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, ChinaHenan Key Laboratory of Laser and Optoelectronic Information Technology, The School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou 450001, ChinaIn the propagation phase of a dielectric metasurface, there are two important problems. Firstly, the range of transmittance of the nanopillars for a building metasurface is usually between 60% and 100%, which reduces the metasurface’s overall transmittance and affects the uniformity of the transmitted light. Secondly, the realistic phase provided by the nanopillar cannot be matched very well with the theoretical phase at each lattice location.The phase difference (between a realistic phase and theoretical phase) may reach tens of degrees. Here, we propose an interesting method to solve these problems. With this new method, a metalens is designed in this paper. The nanopillars for building the metalens have transmittance over 0.95, which increases the metalens transmittance and improves the light uniformity. In addition, with the new method, the phase differences of all elements in the metalens can also be reduced to be below 0.05°, decreasing the metalens spherical aberration dramatically. This method not only helps us to optimize the metalens but also provides a useful way for designing high-quality metasurfaces.https://www.mdpi.com/2079-4991/12/21/3720metasurfacemetalensphase correctionspherical aberration |
| spellingShingle | Xiaohong Sun Shuang Huo He Yang Mengmeng Yan Jianing Zhai Saili Zhao Yong Zeng Optimizing Metasurface-Component Performance by Improving Transmittance and Phase Match of the Nanopillars Nanomaterials metasurface metalens phase correction spherical aberration |
| title | Optimizing Metasurface-Component Performance by Improving Transmittance and Phase Match of the Nanopillars |
| title_full | Optimizing Metasurface-Component Performance by Improving Transmittance and Phase Match of the Nanopillars |
| title_fullStr | Optimizing Metasurface-Component Performance by Improving Transmittance and Phase Match of the Nanopillars |
| title_full_unstemmed | Optimizing Metasurface-Component Performance by Improving Transmittance and Phase Match of the Nanopillars |
| title_short | Optimizing Metasurface-Component Performance by Improving Transmittance and Phase Match of the Nanopillars |
| title_sort | optimizing metasurface component performance by improving transmittance and phase match of the nanopillars |
| topic | metasurface metalens phase correction spherical aberration |
| url | https://www.mdpi.com/2079-4991/12/21/3720 |
| work_keys_str_mv | AT xiaohongsun optimizingmetasurfacecomponentperformancebyimprovingtransmittanceandphasematchofthenanopillars AT shuanghuo optimizingmetasurfacecomponentperformancebyimprovingtransmittanceandphasematchofthenanopillars AT heyang optimizingmetasurfacecomponentperformancebyimprovingtransmittanceandphasematchofthenanopillars AT mengmengyan optimizingmetasurfacecomponentperformancebyimprovingtransmittanceandphasematchofthenanopillars AT jianingzhai optimizingmetasurfacecomponentperformancebyimprovingtransmittanceandphasematchofthenanopillars AT sailizhao optimizingmetasurfacecomponentperformancebyimprovingtransmittanceandphasematchofthenanopillars AT yongzeng optimizingmetasurfacecomponentperformancebyimprovingtransmittanceandphasematchofthenanopillars |