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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Propagation of waves from an arbitrary shaped surface-A generalization of the Fresnel diffraction integral
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Propagation of waves from an arbitrary shaped surface-A generalization of the Fresnel diffraction integral

机译:波从一个任意形状表面的传播 - 菲涅耳衍射积分的概括

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Using the method of Laplace transform the field amplitude in the paraxial approximation is found in the twodimensional free space using initial values of the amplitude specified on an arbitrary shaped monotonic curve. The obtained amplitude depends on one a priori unknown function, which can be found from a Volterra first kind integral equation. In a special case of field amplitude specified on a concave parabolic curve the exact solution is derived. Both solutions can be used to study the light propagation from arbitrary surfaces including grazing incidence X-ray mirrors. They can find applications in the analysis of coherent imaging problems of X-ray optics, in phase retrieval algorithms as well as in inverse problems in the cases when the initial field amplitude is sought on a curved surface. (C) 2017 Elsevier B.V. All rights reserved.
机译:使用拉普拉斯变换方法,在双模自由空间中使用任意形单调曲线上指定的幅度的初始值在二维自由空间中找到了近似自由空间中的磁场幅度。 获得的幅度取决于先验未知函数,其可以从Volterra第一类积分方程中找到。 在凹形抛物线曲线上指定的特殊情况下,派生了精确的解决方案。 这两种解决方案都可用于研究从包括放牧入射X射线镜的任意表面的光传播。 他们可以在分析X射线光学器件的分析中找到应用程序,在曲面检索算法中,在曲面上寻求初始场幅度的情况下的逆问题。 (c)2017年Elsevier B.V.保留所有权利。

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