激光斜向照射圆柱状细丝产生的光环现象
Circle of Light Generated by Cylindrical Wire Obliquely Illuminated by Laser
DOI: 10.12677/APP.2017.72007, PDF, HTML, XML,  被引量 下载: 2,063  浏览: 6,265 
作者: 关国业, 黄家坚, 林 方*：四川大学物理科学与技术学院，四川 成都
关键词: 光环；细丝；锥状光场；反射；衍射；Circle of Light； Thin Wire； Conical Light Field； Reflection； Diffraction
摘要: 将一根圆柱状细铜丝垂直于地面放置，当激光沿细丝所在平面斜向下照射铜丝时，在地面上可观察到一个明亮清晰的光环。本文从理论与实验两个方面分析了激光束入射不透明光滑细铜丝时，在空间中产生的三维锥状光场，得到光环由激光反射与衍射共同形成的结论，并讨论了系统参量对光环形态的影响。此外，本文还对不同结构、粗糙程度与透明度的多种细丝产生的光环形态进行了探究。
Abstract: When a laser beam was aimed at a thin copper wire perpendicular to the ground, a circle of light could be observed clearly. In this paper, the three-dimension conical light field induced by laser beam and opaque smooth wire was analyzed both theoretically and experimentally, which has come to a conclusion that the light circle was formed by reflection and diffraction together. Meanwhile, the influence of system relevant parameters has also been studied. In addition, wires with different properties (such as structure, roughness and transparency) have been further in-vestigated as well.
文章引用：关国业, 黄家坚, 林方. 激光斜向照射圆柱状细丝产生的光环现象[J]. 应用物理, 2017, 7(2): 43-53. https://doi.org/10.12677/APP.2017.72007

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