| 无衍射J_0光束的横向分布特性的分析 |
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| 引用本文： | 邢笑雪,张炜.无衍射J_0光束的横向分布特性的分析[J].科技信息,2008(32). |
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| 作者姓名： | 邢笑雪 张炜 |
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| 作者单位： | 长春大学电子信息工程学院;东南融通公司; |
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| 摘 要： | 利用衍射积分理论,导出平面波通过轴棱锥后的横向光场的分布特性,数值模拟了无衍射J0光束横向光强的分布。实验采用了氦氖激光器作为光源,利用体视数码显微镜即一个体视显微镜加上一个数码相机来得到输出光斑图,并利用matlab将结果进行了进一步的分析。通过实验的验证显示氦氖激光光束通过轴棱锥后产生的光束电场强度的横向分布很集中,中心光斑的能量最强,呈现理想的零阶贝塞尔光,与理论非常吻合。
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| 关 键 词： | 无衍射J0光束 轴棱锥 横截面光强 体视数码显微镜 |
The analysis on the cross section optical field of the nondiffracting J_0 beam |
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| Xing Xiaoxue Zhang Wei.The analysis on the cross section optical field of the nondiffracting J_0 beam[J].Science,2008(32). |
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| Authors: | Xing Xiaoxue Zhang Wei |
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| Institution: | Xing Xiaoxue1 Zhang Wei2(1.Electronic Information Engineering College,Changchun University,Changchun 130022,China,2.The Longtop Company,China) |
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| Abstract: | Based on Huygens-Fresnel diffraction integral theory,the cross section optical field distribution of plane waves passing through an axicon is derived,the optical intensity distribution on the cross section is numerically simulated.In the experiment,we use the He-Ne laser as the source,record the Bessel beam patterns behind the axicon by using a digital camera and a microscope,and make a further analyses for the results by matlab.The experiments show that the beam generated by He-Ne laser becomes non-diffrac... |
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| Keywords: | non-diffracting beams axicon the cross section optical field a digital camera and a microscope |
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