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Correction of Aberrations via Polarization in Single Layer Metalenses

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JournalAdvanced Optical Materials
DateE-pub ahead of print - 10 Mar 2022
DatePublished (current) - 4 May 2022
Issue number9
Volume10
Number of pages6
Early online date10/03/22
Original languageEnglish

Abstract

The correction of multiple aberrations in an optical system requires different optical elements, which increases its cost and complexity. Metasurfaces hold great promise to providing new functionality for miniaturized and low-cost optical systems. A key advantage over their bulk counterparts is the metasurface's ability to respond to the polarization of light, which adds a new degree of freedom to the optical design. Here, it is shown that polarization control enables a form-birefringent metalens to correct for both spherical and off-axis aberrations using a single element only, which is not possible with bulk optics. The metalens encodes two phase profiles onto the same surface, thus allowing switching from high resolution to wide field of view operation. Such ability to obtain both high resolution and wide field of view in a single layer is an important step towards integration of miniaturized optical systems, which may find many applications, e.g., in microscopy and endoscopy.

Bibliographical note

Funding Information:
This work was supported by S?o Paulo Research Foundation (FAPESP) (Grants 2013/07276-1, 2021/06121-0, 2015/21455-1, 2018/25372-1, 2020/00619-4, and 2020/15940-2); National Council for Scientific and Technological Development (CNPq) (304208/2021-3, 303562/2017-0). Guangdong Basic and Applied Basic Research Foundation (2020B1515020019). National Natural Science Foundation of China (12074444). The authors D.C. and T.F.K. acknowledge financial support by the EPSRC of the UK (Grant EP/P030017/1 and EP/T020008/1).

Funding Information:
This work was supported by São Paulo Research Foundation (FAPESP) (Grants 2013/07276‐1, 2021/06121‐0, 2015/21455‐1, 2018/25372‐1, 2020/00619‐4, and 2020/15940‐2); National Council for Scientific and Technological Development (CNPq) (304208/2021‐3, 303562/2017‐0). Guangdong Basic and Applied Basic Research Foundation (2020B1515020019). National Natural Science Foundation of China (12074444). The authors D.C. and T.F.K. acknowledge financial support by the EPSRC of the UK (Grant EP/P030017/1 and EP/T020008/1).

Publisher Copyright:
© 2022 Wiley-VCH GmbH.

    Research areas

  • crystalline silicon, dielectric metalenses, form birefringence, metasurfaces, wide field of view metalens

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