Laser & Optoelectronics Progress, Volume. 60, Issue 9, 0905002(2023)

Generating Hollow Gaussian Beams with Improved Fresnel Zone Plates

Chaoyue Li, Qing Cao*, Changjie Cheng, and Jirui Zhu
Author Affiliations
  • Department of Physics, College of Sciences, Shanghai University, Shanghai 200444, China
  • show less

    Hollow Gaussian beam is a hollow beam class that does not carry orbital angular momentum, its dark spot size is small and has a simple function formula. Hollow Gaussian beam has potential application in the fields of atomic guiding, particle manipulation, and optical communication. Meanwhile, zone plates, also known as Fresnel zone plates, focus light waves through diffraction onto a receiving object. Therefore, this relationship can be applied to design zone plates which generate hollow Gaussian beams. This study demonstrates that the zone plate focal plane complex amplitude distribution function is proportional to the Fourier-Bessel transform of the equivalent pupil function which describes the effects of transmission on waves. The zone plate equivalent pupil functions were calculated to produce the 1st, 3rd, and 6th order hollow Gaussian beams. Subsequently, the structural parameters of these three zone plates were designed. The wavelength and focal length of the zone plates were also changed to determine their influence on the structure parameters and dark spot size. Next, the focal plane light fields of these three modified zone plates were simulated using the Rayleigh-Sommerfeld diffraction integral. The simulation results are consistent with expectations which verifies the reliability and accuracy of the equivalent pupil function method to design Fresnel zone plates.

    Tools

    Get Citation

    Copy Citation Text

    Chaoyue Li, Qing Cao, Changjie Cheng, Jirui Zhu. Generating Hollow Gaussian Beams with Improved Fresnel Zone Plates[J]. Laser & Optoelectronics Progress, 2023, 60(9): 0905002

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Diffraction and Gratings

    Received: Mar. 31, 2022

    Accepted: May. 5, 2022

    Published Online: Apr. 24, 2023

    The Author Email: Cao Qing (qcao@shu.edu.cn)

    DOI:10.3788/LOP221160

    Topics