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X-ray Third-Order Nonlinear Dynamical Diffraction in a Crystal

机译:晶体中的X射线三阶非线性动力衍射

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摘要

The dynamic diffraction of an X-ray wave in a crystal with a third-order nonlinear response to external field strength has been theoretically investigated. General equations for the wave propagation in crystal and nonlinear Takagi equations for both ideal and deformed crystals are derived. Integrals of motion are determined for the nonlinear problem of dynamic diffraction. The results of the numerical calculations of reflectivity in the symmetric Laue geometry for an incident plane wave and the intensity distributions on the output crystal surface for a point source are reported as an example.
机译:理论上已经研究了晶体中X射线波的动态衍射,该晶体具有对外部场强的三阶非线性响应。推导了晶体中波传播的一般方程,以及理想和变形晶体的非线性Takagi方程。对于动态衍射的非线性问题,确定了运动积分。以入射点平面波对称劳厄几何学中反射率的数值计算结果和点源在输出晶体表面上的强度分布为例。

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