Generating Ultralong-Superoscillation Nondiffracting Beams with Full Control of the Intensity Profile

Kun Zhang, Hai Jiang, Fengliang Dong, Haifeng Hu, Zhiwei Song, Lihua Xu, Zhengguo Shang, Gaofeng Liang, Zhihai Zhang, Zhongquan Wen, Yi Zhou, Luru Dai, Weiguo Chu, and Gang Chen

Phys. Rev. Applied 19, 014041 – Published 13 January 2023

Abstract

Nondiffracting light beams receive substantial attention in various areas due to their properties of diffractionless propagation and achievable subwavelength beam size. Extending the propagation distance and compressing the beam size of nondiffracting beams are crucial to their practical applications. However, it remains challenging to achieve nondiffracting light beams with a subwavelength subdiffracting transverse size and a long propagation distance with controllable intensity profiles in both transverse and longitudinal directions. Here, we propose an optimization method to generate an ultralong-superoscillation nondiffracting light beam with full control of the beam intensity profile. A 45λ-long-superoscillation nondiffracting light beam, the transverse sizes of which are within the range of 0.37λ–0.4λ along the propagation axis, is experimentally demonstrated by a metalens based on continuous phase modulation using geometrical phase metasurfaces. Our method provides an attractive way to controllably generate ultralong-superoscillation nondiffracting beams on a subwavelength scale and might find fascinating applications in optical manipulation, materials processing, data storage, microscopy, and spectroscopy.

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Received 1 September 2022
Revised 9 November 2022
Accepted 8 December 2022

DOI:https://doi.org/10.1103/PhysRevApplied.19.014041

Physics Subject Headings (PhySH)

Beam optics Non-diffracting waves Spatial profiles of optical beams

Lenses Metasurfaces

Light scattering Optical microscopy Super-resolution techniques

Condensed Matter, Materials & Applied PhysicsAtomic, Molecular & Optical

Authors & Affiliations

Kun Zhang^1,2, Hai Jiang ¹, Fengliang Dong^2,3,4, Haifeng Hu^2,3,4, Zhiwei Song^2,3,4, Lihua Xu^2,3,4, Zhengguo Shang¹, Gaofeng Liang¹, Zhihai Zhang¹, Zhongquan Wen¹, Yi Zhou ^1,*, Luru Dai^2,5,†, Weiguo Chu^2,3,4,‡, and Gang Chen^1,§

¹Laboratory of Optoelectronic Technology and Systems (Chongqing University), Ministry of Education, School of Optoelectronic Engineering, Chongqing University, 174 Shazheng Street, Shapingba, Chongqing 400044, China
²National Center for Nanoscience and Technology, No.11 Zhong Guan Cun Bei Yi Tiao, Beijing 100190, China
³CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, Nanofabrication Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
⁴Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
⁵Key Laboratory of Biomedical Effects of Nanomaterials and Nanosafety, Chinese Academy of Sciences and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China

^*yi_zhou@cqu.edu.cn
^†dai@nanoctr.cn
^‡wgchu@nanoctr.cn
^§gchen1@cqu.edu.cn

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Issue

Vol. 19, Iss. 1 — January 2023

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Physical Review Applied