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Moiré fringes can be considered as a means of producing a geometrical magnification of the crystal lattice and of the defects contained in it. They can be used to derive small differences in lattice spacing of superposed crystals (e.g., of a precipitate particle relative to the surrounding matrix). Read more. View chapter Explore book.
18世纪. 发现者. 莫尔. 介 绍. 发生干涉的 视觉 结果. 目录. 1 原理及应用. 2 产生方法. 3 现存问题. 4 避免方法. 5 预测工具. 网目仪. 分度仪. 6 防护工具. 原理及应用. 播报. 编辑. 1874年，英国物理学家瑞利首先揭示出了莫尔条纹图案的科学和工程价值，指出了借观察莫尔条纹的移动来测量光栅相对位移的可能性，为在物理光栅的基础上发展出计量光栅的分支奠定了理论基础。 莫尔条纹是 光栅 位移精密测量的基础，在实际应用中由两个空间频率相近的周期性光栅图形叠加而形成的光学条纹就是莫尔条纹，可以由遮光效应、 衍射效应 和干涉效应等多种原理产生。
The moir ́e effect is the op-tical effect of superimposing a repetitive or periodic design, such as a grid or fringe, on the same or a different design, oriented at an acute angle or displaced, to produce a pattern distinct from its components [2].
To create the desired Moiré fringes, we overlap a moving straight-line grating (computer-generated hologram from two plane waves) and a fork-type grating with topological charge of m = 3 (the interference between a plane wave and a self-accelerating vortex beam), as shown in Fig. 6a–c.
29 de sept. de 2017 · Moiré fringes are formed if there is a vector difference \({\bf{m}}={{\bf{g}}}_{2}-{{\bf{g}}}_{1}\) between the diffraction vectors I, g 1 and II, g 2.
Utilization of high spatial frequency laser interference to illuminate sub-resolution structure within a specimen produces moiré fringes, which are captured. These moiré fringes include modulated information of the sub-resolution structure of the specimen.
15 de mar. de 2020 · Morie fringes and Fresnel fringes are caused by phase contrast.
