Polarization-Insensitive, Orthogonal Linearly Polarized and Orthogonal Circularly Polarized Synthetic Aperture Metalenses

Metalenses have attracted much attention from researchers because they are thin, multifunctional and easy to integrate. However, due to the limitation of fabrication techniques and the influence of working wavelength, it is difficult to realize a large aperture. In this paper, we design and simulate...

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Bibliographic Details
Published in:Photonics 2023-04, Vol.10 (4), p.348
Main Authors: Hu, Jijian, Dong, Zhenghong, Yang, Xuanwen, Xia, Lurui, Chen, Xueqi, Lu, Yan
Format: Article
Language:English
Subjects:
Circular polarization
Design
Efficiency
Electric fields
Fabrication
focusing efficiency
Light
Linear polarization
Modulation transfer function
Polarization
Propagation
Simulation
Software
synthetic aperture metalens
Synthetic apertures
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Summary:Metalenses have attracted much attention from researchers because they are thin, multifunctional and easy to integrate. However, due to the limitation of fabrication techniques and the influence of working wavelength, it is difficult to realize a large aperture. In this paper, we design and simulate polarization-insensitive, orthogonal linearly polarized and orthogonal circularly polarized synthetic aperture metalenses. We use a synthetic aperture to improve the cutoff frequency of the metalens and achieve an equivalent large-aperture metalens. We compare the modulation transfer function and focusing efficiency of synthetic aperture metalenses with different array structures. This work provides an effective solution to the needs of large-aperture metalenses, and metalenses with different polarizations can play an important role in polarization imaging.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics10040348