离轴超构透镜设计与特性分析

胡金高娃; 赵尚男; 王灵杰; 叶昊坤; 张建萍; 张新

doi:10.37188/CO.2023-0039

Volume 17 Issue 1

Jan. 2024

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Article Contents

Chinese Optics > 2024 > 17(1): 52-60.

HU Jin-gao-wa, ZHAO Shang-nan, WANG Ling-jie, YE Hao-kun, ZHANG Jian-ping, ZHANG Xin. Design and characteristic analysis of off-axis meta-lens[J]. Chinese Optics, 2024, 17(1): 52-60. doi: 10.37188/CO.2023-0039

Citation:

HU Jin-gao-wa, ZHAO Shang-nan, WANG Ling-jie, YE Hao-kun, ZHANG Jian-ping, ZHANG Xin. Design and characteristic analysis of off-axis meta-lens[J]. Chinese Optics, 2024, 17(1): 52-60. doi: 10.37188/CO.2023-0039

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Design and characteristic analysis of off-axis meta-lens

doi: 10.37188/CO.2023-0039

HU Jin-gao-wa^{1, 2
,},
ZHAO Shang-nan^{1, 2
,
,},
WANG Ling-jie¹,
YE Hao-kun^{1, 2},
ZHANG Jian-ping¹,
ZHANG Xin^{1, 2}

1.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds: Supported by the National Natural Science Foundation of China (No. 62005271)

More Information

Corresponding author: 18810575846@163.com
Received Date: 07 Mar 2023
Rev Recd Date: 04 Apr 2023

Available Online: 13 Jul 2023

Abstract

Abstract

We propose a design method for off-axis meta-lens and analyze the effects of numerical aperture, off-axis angle, and incident wavelength on the simulation deviation, resolution and focusing efficiency of off-axis meta-lenses. Several off-axis meta-lenses with parameters NA=0.408 α=13°, NA=0.180 α=13°, NA=0.408 α=20° were simulated by Lumerical, respectively. The simulation results indicate that the off-axis angle is directly proportional to the spectral resolution. As the angle increases, the spectral resolution becomes better, but the focusing efficiency decreases. A smaller numerical aperture result in a smaller coverage of the phase distribution, leading to a larger deviation between the simulation and theory. Designers need to reasonably balance parameters such as numerical aperture and off-axis angle according to the requirements to finally achieve the desired effect. This study has an important reference value for theoretical analysis and parameter design of off-axis meta-lens in practical application.
- meta-lens,
- off-axis meta-lens,
- simulation analysis

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References(29)

References

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