Lossless imaging based on a donut-like optical sparse aperture metalens

Author:

Dong Yangeng12ORCID,Sun Ti3,Hu Jingpei12ORCID,Lin Yu4ORCID,Zeng Aijun12,Huang Huijie12,Wang Chinhua3ORCID,Jiang Chunping4ORCID

Affiliation:

1. Laboratory of Information Optics and Optoelectronic Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences 1 , Shanghai 201800, China

2. University of Chinese Academy of Sciences 2 , Beijing 100049, China

3. Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province and Key Laboratory of Modern Optical Technologies of Ministry of Education, Soochow University 3 , Suzhou 215006, China

4. Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science 4 , Suzhou 215123, China

Abstract

The optical sparse aperture approach has been shown to have significant potential in enlarging the aperture size and enhancing the imaging resolution of metalenses. However, because of frequency loss caused by the sparsity and dispersion of sparse aperture arrays, the stitch method for conventional optical sparse aperture metalenses has a non-uniform imaging resolution at different azimuth angles and cannot achieve the same resolution as the corresponding full-aperture metalens. Here, we design and demonstrate the application of a donut-like optical sparse aperture metalens with a lossless imaging property using a shear design method. This metalens has a diffraction-limited resolution of 153 lp/mm for all azimuth angles, which allows us to circumvent the non-uniform imaging resolution of the conventional optical sparse aperture metalens at different azimuth angles and enables us to achieve full resolution. Furthermore, noise resistance in practical images is achieved because of the improved modulation transfer function in the high-frequency region. Such a metalens without frequency loss has significant application potential in the fields of integrated optical systems, lightweight imaging devices, and wearable optics.

Funder

Jiangsu Provincial Key Research and Development Program

Natural Science Foundation of Jiangsu Province

International Science and Technology Cooperation Program of shanghai

Integrated Circuit Major Science and Technology Project of Shanghai

Publisher

AIP Publishing

Subject

Physics and Astronomy (miscellaneous)

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