根据劳厄衍射方程的矢量形式计算光线经对称或非对称晶体衍射后的方向。
Diffraction direction of a ray passing a crystal for symmetrical or asymmetrical reflection is calculated from the vector form of Laue diffraction equation.
实验表明，反射全息图的衍射光谱呈现出明显的非对称性，并伴随着一系列次峰的出现。
The experiments has shown that the spectrum of reflection hologram presents obvious non-symmetry, and is accompanied with a series of sub-peaks.
这个相的选区电子衍射花样显示出准晶体结构的五次对称性。
The selected area diffraction patterns from the phase show a fivefold symmetry of a qua-sierystalline structure.
从广义惠更斯-菲涅耳衍射积分出发，导出了洛伦兹光束通过一阶轴对称光学系统传输变换的解析公式。
Based on the generalized Huygens-Fresnel diffraction integral, the analytic propagation expressions for Lorentz beams passing through first-order axisymmetric optical system are derived.
根据晶体的对称性、衍射几何和衍射规律，研究了复杂的发散X射线晶体衍射。
Acoording to the crystal symmetry, diffraction geometry and the diffraction laws, the complicated divergent beam X-ray diffraction has been studied.
对二维晶体的矩阵表示、对称性及其对X射线衍射的系统消光规律进行了研究，得到并证明了二维晶体的矩阵表示的二个定理和二维晶体对X射线衍射的系统消光定理。
The crystallographic problems of two-dimensional crystal, such as the matrix expression, the symmetry and the systematic absence law of the crystal's X-ray diffraction, are studied.
基于矢量衍射理论数值研究了利用高数值孔径聚焦的高偏振级次轴对称偏振光束实现表面等离子体干涉。
We numerically study the surface plasmon interference formed by tightly focused higher polarization order axially symmetric polarized beams (ASPBs) based on the vectorial diffraction theory.
在大多数文献中，主要用它来设计一维衍射光学元件和具有旋转对称结构的二维衍射光学元件，故在此称之为一维杨顾算法。
In almost all literatures, it is mainly used to compute one-dimensional diffractive optical elements and two-dimensional diffractive optical elements with rotationally symmetric structures.
在大多数文献中，主要用它来设计一维衍射光学元件和具有旋转对称结构的二维衍射光学元件，故在此称之为一维杨顾算法。
In almost all literatures, it is mainly used to compute one-dimensional diffractive optical elements and two-dimensional diffractive optical elements with rotationally symmetric structures.
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