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Volume 24 Issue 4
Sep.  2013
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Citation:
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Propagation of three-dimensional flattened Gaussian beams through an annular aperture

  • 1.

    Institute of Laser Physics & Chemistry, Sichuan University, Chengdu, 610064

  • Received Date: 1999-04-02
  • The propagation properties of three-dimensional flattened Gaussian beams passing through a rectangular annular aperture with a central obscuration have been studied in detail using Collins diffraction integral formula.Numerical calculation results of both Fresnel and Fraunhofer diffractions have shown the dependence of their intensity distributions and power (energy) focusability in the far-field on the obscure ratioe and truncation parameter δ.
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    Sheppard C J,Wilson T.Microwaves,Optics and Acoustics,1978;2(4):105～109
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    Born M,Wolf E.Principles of Optics.Fift hedition,Pergamon Press,1975:416～418
    [3] 张彬,吕百达.光学学报,1997;17(12):1660～1664
    [4]

    Gori F.Opt Commun,1994;107:335～341
    [5] 吕百达.激光光学.成都:四川大学出版社,1992:54
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Propagation of three-dimensional flattened Gaussian beams through an annular aperture

  • 1. Institute of Laser Physics & Chemistry, Sichuan University, Chengdu, 610064
  • Received Date: 1999-04-02
  • Available Online: 2000-07-25

Abstract: The propagation properties of three-dimensional flattened Gaussian beams passing through a rectangular annular aperture with a central obscuration have been studied in detail using Collins diffraction integral formula.Numerical calculation results of both Fresnel and Fraunhofer diffractions have shown the dependence of their intensity distributions and power (energy) focusability in the far-field on the obscure ratioe and truncation parameter δ.

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