中国物理B ›› 2024, Vol. 33 ›› Issue (1): 14209-14209.doi: 10.1088/1674-1056/acde4f

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Performance analysis of single-focus phase singularity based on elliptical reflective annulus quadrangle-element coded spiral zone plates

Huaping Zang(臧华平)1, Baozhen Wang(王宝珍)1, Chenglong Zheng(郑程龙)1, Lai Wei(魏来)2, Quanping Fan(范全平)2, Shaoyi Wang(王少义)2, Zuhua Yang(杨祖华)2,‡, Weimin Zhou(周维民)2, Leifeng Cao(曹磊峰)3, and Haizhong Guo(郭海中)1,†   

  1. 1 Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China;
    2 National Key Laboratory for Laser Fusion, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;
    3 School of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China
  • 收稿日期:2023-04-19 修回日期:2023-05-28 接受日期:2023-06-14 出版日期:2023-12-13 发布日期:2023-12-20
  • 通讯作者: Haizhong Guo, Zuhua Yang E-mail:hguo@zzu.edu.cn;yangzuhua@caep.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12174350, 12275253, and 12275250), the Program of Science and Technology on Plasma Physics Laboratory, China Academy of Engineering Physics (Grant No. 6142A04200107), and the National Natural Science Foundation, Youth Fund (Grant No. 12105268).

Performance analysis of single-focus phase singularity based on elliptical reflective annulus quadrangle-element coded spiral zone plates

Huaping Zang(臧华平)1, Baozhen Wang(王宝珍)1, Chenglong Zheng(郑程龙)1, Lai Wei(魏来)2, Quanping Fan(范全平)2, Shaoyi Wang(王少义)2, Zuhua Yang(杨祖华)2,‡, Weimin Zhou(周维民)2, Leifeng Cao(曹磊峰)3, and Haizhong Guo(郭海中)1,†   

  1. 1 Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China;
    2 National Key Laboratory for Laser Fusion, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;
    3 School of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China
  • Received:2023-04-19 Revised:2023-05-28 Accepted:2023-06-14 Online:2023-12-13 Published:2023-12-20
  • Contact: Haizhong Guo, Zuhua Yang E-mail:hguo@zzu.edu.cn;yangzuhua@caep.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12174350, 12275253, and 12275250), the Program of Science and Technology on Plasma Physics Laboratory, China Academy of Engineering Physics (Grant No. 6142A04200107), and the National Natural Science Foundation, Youth Fund (Grant No. 12105268).

摘要: Optical vortices generated by the conventional vortex lens are usually disturbed by the undesired higher-order foci, which may lead to additional artifacts and thus degrade the contrast sensitivity. In this work, we propose an efficient methodology to combine the merit of elliptical reflective zone plates (ERZPs) and the advantage of spiral zone plates (SZPs) in establishing a specific single optical element, termed elliptical reflective annulus quadrangle-element coded spiral zone plates (ERAQSZPs) to generate single-focus phase singularity. Differing from the abrupt reflectance of the ERZPs, a series of randomly distributed nanometer apertures are adopted to realize the sinusoidal reflectance. Typically, according to our physical design, the ERAQSZPs are fabricated on a bulk substrate; therefore, the new idea can significantly reduce the difficulty in the fabrication process. Based on the Kirchhoff diffraction theory and convolution theorem, the focusing performance of ERAQSZPs is calculated. The results reveal that apart from the capability of generating optical vortices, ERAQSZPs can also integrate the function of focusing, energy selection, higher-order foci elimination, as well as high spectral resolution together. In addition, the focusing properties can be further improved by appropriately adjusting the parameters, such as zone number and the size of the consisted primitives. These findings are expected to direct a new direction toward improving the performance of optical capture, x-ray fluorescence spectra, and forbidden transition.

关键词: optical vortex, single-focus, spiral zone plate, topological charges

Abstract: Optical vortices generated by the conventional vortex lens are usually disturbed by the undesired higher-order foci, which may lead to additional artifacts and thus degrade the contrast sensitivity. In this work, we propose an efficient methodology to combine the merit of elliptical reflective zone plates (ERZPs) and the advantage of spiral zone plates (SZPs) in establishing a specific single optical element, termed elliptical reflective annulus quadrangle-element coded spiral zone plates (ERAQSZPs) to generate single-focus phase singularity. Differing from the abrupt reflectance of the ERZPs, a series of randomly distributed nanometer apertures are adopted to realize the sinusoidal reflectance. Typically, according to our physical design, the ERAQSZPs are fabricated on a bulk substrate; therefore, the new idea can significantly reduce the difficulty in the fabrication process. Based on the Kirchhoff diffraction theory and convolution theorem, the focusing performance of ERAQSZPs is calculated. The results reveal that apart from the capability of generating optical vortices, ERAQSZPs can also integrate the function of focusing, energy selection, higher-order foci elimination, as well as high spectral resolution together. In addition, the focusing properties can be further improved by appropriately adjusting the parameters, such as zone number and the size of the consisted primitives. These findings are expected to direct a new direction toward improving the performance of optical capture, x-ray fluorescence spectra, and forbidden transition.

Key words: optical vortex, single-focus, spiral zone plate, topological charges

中图分类号:  (Filters, zone plates, and polarizers)

  • 42.79.Ci
42.25.Fx (Diffraction and scattering) 07.85.Fv (X- and γ-ray sources, mirrors, gratings, and detectors)