Fresnel diffraction by spherical obstacles
Fresnel diffraction by spherical obstacles
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球形障碍物的菲涅耳衍射
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
E. Hovenac
中科院分区：
文献类型：
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作者：
E. Hovenac
Lommel 函数用于求解球形障碍物情况下的菲涅尔-基尔霍夫衍射积分。对菲涅耳衍射理论和米氏散射理论进行了比较。然后将菲涅尔理论与实验数据进行比较。实验和理论之间的偏差通常小于 10%。使用悬浮在粘性流体中的汞球的独特实验装置显着降低了光学噪声。误差的主要来源是高斯形激光束。
Lommel functions were used to solve the Fresnel–Kirchhoff diffraction integral for the case of a spherical obstacle. Comparisons were made between Fresnel diffraction theory and Mie scattering theory. Fresnel theory is then compared to experimental data. Experiment and theory typically deviated from one another by less than 10%. A unique experimental setup using mercury spheres suspended in a viscous fluid significantly reduced optical noise. The major source of error was due to the Gaussian‐shaped laser beam.