Broadband high-efficiency reflective metasurfaces for sub-diffraction focusing in the visible

Xinjian Lu; Yinghui Guo; Mingbo Pu; Xiong Li; Xiaoliang Ma; Ping Gao; Xiangang Luo

doi:10.1117/12.2604462

13 December 2021 Broadband high-efficiency reflective metasurfaces for sub-diffraction focusing in the visible

Xinjian Lu, Yinghui Guo, Mingbo Pu, Xiong Li, Xiaoliang Ma, Ping Gao, Xiangang Luo

Proceedings Volume 12072, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics; 120720D (2021) https://doi.org/10.1117/12.2604462
Event: Tenth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2021), 2021, Chengdu, China

Abstract

Super-oscillation phenomenon provides an effective solution for realizing far-field non-invasive super-resolution imaging. However, most super-oscillatory lenses are challenging to balance the working bandwidth and working efficiency, which greatly limits the practical applications of super-oscillation lenses in optical systems. In this work, a broadband high-efficiency super-oscillatory metalens for sub-diffraction focusing about 0.75 times the diffraction limit based on the reflective metasurface is proposed for super-resolution imaging in the visible ranging from 400 nm to 700 nm. Moreover, another metalens with a sub-diffraction focusing spot equal to 0.6 times of the diffraction limit is also designed to prove the universal applicability of the proposed method. The proposed method provides an effective pathway for the development of microscopy, holography, and machine vision.

Citation Download Citation

Xinjian Lu, Yinghui Guo, Mingbo Pu, Xiong Li, Xiaoliang Ma, Ping Gao, and Xiangang Luo "Broadband high-efficiency reflective metasurfaces for sub-diffraction focusing in the visible", Proc. SPIE 12072, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Micro- and Nano-Optics, Catenary Optics, and Subwavelength Electromagnetics, 120720D (13 December 2021); https://doi.org/10.1117/12.2604462

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available