查询词典 diffraction

Double slit diffraction is the double slit interference phenomenon modulated by single slit diffraction.

双缝衍射是指被单缝衍射调制的双缝干涉现象。

The Monte Carlo method is used to electronic distribution in electron cloud and electron diffraction. The distribution graphes of the electron cloud in atom and molecule are drawn and the phenomenon of the electron diffraction from a single slit or a small aperture is simulated vividly.

运用蒙特卡罗方法处理了电子云和电子衍射中非均匀电子的产生问题，形象的绘制了原子、分子中的电子云分布图形，生动的模拟了单缝电子衍射实验现象。

At one time, developing a new embranch subject -Binary Optics, it make use of diffraction theory,Computer Aided Design and VLSI ,sculpting the embossment of two or more steps on the surface of optical instruments , its photic characteristic including pure phase ,coexiting reappearance and high diffraction efficiency.

在光纤通信和光信息处理中具有重要的作用，可以完成站点与站点、系统与系统、板与板、芯片与芯片以及各逻辑处理单元之间的光信号连接、多项式求值、排序、快速傅立叶变换、矩阵变换等功能。

It showed that the energy focusability of the diffraction beam depended on the transmission distance,diffraction aperture and facula radius,and appropriate energy focusability could be obtained by controlling some parameters of the optical system.

研究结果表明，衍射光束的能量集中度与传输距离、衍射孔径、光斑半径等参量有关，通过对光学系统参量的控制，可得到合适的能量集中度。

Based on the normative fractional Fourier transform and the concept of the optical transfer function, using the linear system theory, the mathematic expressions of fractional transfer function in Fresnel diffraction system and Fraunhofer diffraction system are given respectively.

基于规范光学分数傅里叶变换，从光学传递函数概念出发，根据菲涅耳衍射、夫琅和费衍射定义，应用线性系统理论，分别给出了菲涅耳与夫琅和费衍射系统在规范分数傅里叶变换下的光学传递函数数学表达式。

For different parameters, the diffraction patterns of the expression of the Fraunhofer diffraction are identical, indicating the correctness of the expression.

在各种参量条件下，近似解析式所表示的衍射图样与严格的夫琅和费衍射积分的衍射图样完全一致，这表明用此解析式表征远场衍射是正确的。

This procedure used to simulate, Fresnel and Fraunhofer diffraction beam-beam diffraction contrast.

详细说明：此程序用于模拟，菲涅尔衍射光束和夫朗和费衍射光束的对比。

Week 8 Huygens- Fresnel principle, Fraunhofer diffraction, grating diffraction

第8周 惠更斯－菲涅耳原理；夫琅和费衍射。光栅衍射。

Dammann, are based on Fraunhofer diffraction and are one kind of the most effective elements to generate array for high diffraction efficiency with good uniformity.

Dammann提出的达曼光栅因其效率高，光束分布均匀性不受入射光强分布影响等优点，成为目前最有效的分束器件之一。

The former case, where the screen is relatively close to the slit is fresnel diffraction, whereas the latter is Fraunhofer diffraction.

如图 c 所示。前面图示的情况，也就是屏幕与狭缝较近称之为菲涅尔衍射。相反情况就称之为夫朗禾费衍射。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。