中国物理B ›› 2023, Vol. 32 ›› Issue (4): 44201-044201.doi: 10.1088/1674-1056/acb1fe

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Propagation and focusing characteristics of the Bessel-Gaussian beam with the spiral phase term of new power-exponent-phase

Aotian Wang(王傲天)1,2, Lianghong Yu(於亮红)1,†, Jinfeng Li(李进峰)1, and Xiaoyan Liang(梁晓燕)1,‡   

  1. 1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2022-11-14 修回日期:2022-12-30 接受日期:2023-01-11 出版日期:2023-03-10 发布日期:2023-03-30
  • 通讯作者: Lianghong Yu, Xiaoyan Liang E-mail:lhyu@siom.ac.cn;liangxy@siom.ac.cn
  • 基金资助:
    Project supported by the Program of Shanghai Academic/Technology Research Leader (Grant No. 20SR014501), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB1603), and the Youth Innovation Promotion Association of the Chinese Academy of Sciences (Grant No. 2019247).

Propagation and focusing characteristics of the Bessel-Gaussian beam with the spiral phase term of new power-exponent-phase

Aotian Wang(王傲天)1,2, Lianghong Yu(於亮红)1,†, Jinfeng Li(李进峰)1, and Xiaoyan Liang(梁晓燕)1,‡   

  1. 1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-11-14 Revised:2022-12-30 Accepted:2023-01-11 Online:2023-03-10 Published:2023-03-30
  • Contact: Lianghong Yu, Xiaoyan Liang E-mail:lhyu@siom.ac.cn;liangxy@siom.ac.cn
  • Supported by:
    Project supported by the Program of Shanghai Academic/Technology Research Leader (Grant No. 20SR014501), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB1603), and the Youth Innovation Promotion Association of the Chinese Academy of Sciences (Grant No. 2019247).

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摘要： A new type of beam called the NPEP-BG (a Bessel-Gaussian (BG) beam with a spiral phase term of a new power-exponent-phase (NPEP)) is theoretically studied in this paper. The results show that the number of singularities of the phase and side lobes of the intensity of this beam were equal to the topological charges (TCs) and the beam has the characteristics of self-healing during propagation. The NPEP-BG beam combined the partial characteristics of the new power-exponent-phase vortex (NPEPV) and the Bessel-Gaussian beam. At the focus of the beam, the characteristic like a perfect vortex beam was present, in which the focal radius is stable and independent of the topological charge. There are multi-focal spots around a ring in the focal plane, meaning that the NPEP-BG beam has a potential for application in multi-particle manipulation.

关键词: vortex, new-power-exponential-phase, Bessel-Gaussian beam, focus

Abstract: A new type of beam called the NPEP-BG (a Bessel-Gaussian (BG) beam with a spiral phase term of a new power-exponent-phase (NPEP)) is theoretically studied in this paper. The results show that the number of singularities of the phase and side lobes of the intensity of this beam were equal to the topological charges (TCs) and the beam has the characteristics of self-healing during propagation. The NPEP-BG beam combined the partial characteristics of the new power-exponent-phase vortex (NPEPV) and the Bessel-Gaussian beam. At the focus of the beam, the characteristic like a perfect vortex beam was present, in which the focal radius is stable and independent of the topological charge. There are multi-focal spots around a ring in the focal plane, meaning that the NPEP-BG beam has a potential for application in multi-particle manipulation.

Key words: vortex, new-power-exponential-phase, Bessel-Gaussian beam, focus

中图分类号:  (Wave propagation, transmission and absorption)

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