| 无衍射J0光束的理论分析 |
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| 引用本文： | 邢笑雪,吴逢铁,张建荣.无衍射J0光束的理论分析[J].华侨大学学报(自然科学版),2006,27(1):31-34. |
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| 作者姓名： | 邢笑雪 吴逢铁 张建荣 |
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| 作者单位： | 华侨大学信息科学与工程学院,福建,泉州,362021 |
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| 摘 要： | 由同一锥面上的平面波叠加,给出无衍射第一类零阶贝塞尔光束(无衍射J0光束)的解.利用衍射积分理论,导出平面波通过轴棱锥后的光场分布.数值模拟轴上光强和横截面光强的分布,结果证明无衍射光束的最大准直距离的模拟结果与几何光学近似完全吻合.同时,讨论光束半径和轴棱锥棱角对最大准直距离的影响.
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| 关 键 词： | 无衍射J0光束 轴棱锥 轴上光强 横截面光强 中心光斑尺寸 最大准直距离 |
| 文章编号： | 1000-5013（2006）01-0031-04 |
| 收稿时间： | 2005-04-29 |
| 修稿时间： | 2005-04-29 |
Theoretical Analysis of Nondiffracting J0 Beam |
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| Xing Xiaoxue,Wu Fengtie,Zhang Jianrong.Theoretical Analysis of Nondiffracting J0 Beam[J].Journal of Huaqiao University(Natural Science),2006,27(1):31-34. |
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| Authors: | Xing Xiaoxue Wu Fengtie Zhang Jianrong |
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| Institution: | College of Information Science and Engineering, Huaqiao University, 362021, Quanzhou, China |
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| Abstract: | The solution of the zero order of the first kind Bessel beam(nondiffracting J_0 beam) is given by superposition of the plane waves whose wave vectors lies on the surface of a cone.By using the theory of diffracting integral,the optical field distribution of plane waves passing through an axicon is derived.The optical intensity distribution on the axis and that on the cross section are numerically simulated.It is shown that there is a good agreement between numerical simulation and geometrical optics approximation for the maximum collimating distance Z_(max) of nondiffracting beam.The effects of beam radius and cone angle of the axicon on the Z_(max) are also discussed. |
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| Keywords: | nondiffracting J_0 beam axicon optical intensity on the axis optical intensity on the cross section central spot size maximum collimating distance |
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