利用编写的程序计算并分析了一种用于激光取样光栅te波和TM波的衍射特性。
The diffraction properties of TE and TM polarizations for a beam-sampling grating are numerically analyzed with this program.
通过利用严格的耦合波理论计算光栅衍射效率的方法，分别编制出了计算te波和TM波的衍射效率程序。
Using the method of rigorous coupled-wave theory to compute the diffraction efficiency of a grating, the program for calculating diffraction efficiency for both te and TM polarization is made.
为研究粗糙海面中的岛屿对雷达波传播的影响，本文采用比较简单而又符合实际的模型，计算了电波在粗糙海面条件下，岛屿对雷达波的衍射损耗。
To study the influence of an island on radar based on coast, we utilize simple and realistic model to calculate diffraction loss over an island in the presence of rough sea surface.
但现在让我们来简单假设一下，我们知道，只波才发生衍射，而且衍射涉及了X光的使用，为什么是X光？
But for now let's simply say that we have a diffraction which we know occurs only by wave-like behavior and it involves the use of x-rays. Why x-rays?
另一个重要的波现象是衍射。
本文揭示了单色光夫琅和费单缝衍射的光强分布与矩形波频谱分布之间的相似性。
This paper proclaims similarity of distribution between light strength of monochromic Fraunhofer's single - slit diffraction and square - wave frequency spectrum.
运用严格的光栅衍射耦合波理论分析光栅的衍射特性，发现该方案不会引入相位畸变。
The rigorous coupled-wave theory is used to analyze the characteristics of grating diffraction, and the results indicate that this method produces no phase distortion.
本文利用严格耦合波理论对用于光纤光栅制作的相位掩模的衍射特性进行了深入的研究。
The diffraction characteristics of the phase mask for UV-written fiber grating is investigated using rigorous coupled-wave theory.
本文从推广的二阶耦合波理论出发，对平条纹面光栅衍射这一物理过程进行分析。
The physical process of diffraction by planar gratings'is analysed, based on the generalized second-order coupled-wave theory.
模拟计算了超短脉冲波场入射下其衍射层析的角分布与面分布。
The Angle distribution and plane distribution of the diffraction tomography with ultrashort pulse incident wave was simulated.
应用天线理论中的电流分布法，首次推导了具有连续位相结构的反射式毫米波衍射天线的远场衍射图计算公式。
The far field diffractive pattern calculating formula for diffraction antenna with continuous phase structure is derived by current distribution method in antenna theory for the first time.
为了定量描述波带板的衍射效应，定义了临界衍射距离。
Meanwhile, a critical diffraction distance was defined to describe the diffration effect of the FZP quantitatively.
改变表面波振幅，发现了各级衍射条纹的强度变化。
The diffraction intensity is variable with the surface wave amplitude which was also found.
介绍了将设计衍射光学元件的方法用于设计低旁瓣毫米波衍射天线的基本设计思想、设计结果和应用前景。
The basic idea, the result and the application prospects of the design of sidelobe depressed dielectric diffraction antenna using the diffraction optics elements designing method were introduced.
采用全波带法分析单缝衍射得出的一个似是而非的结论进行剖析。
The specious conclusion drawn from single-seam diffraction by means of whole wave band analysis is dissected.
建立了时变入射波下的衍射层析基本公式。
The basic formula of the diffraction tomography with time-varied incident wave was established.
实验上实现了低频液体表面波的激光衍射，提出了激光衍射法测量液体表面张力和表面压。
Laser diffraction from liquid surface waves at low-frequency was experimentally realized, a laser diffraction technique for measuring surface tension and surface pressure was designed.
本文用半波带法对夫琅禾费光栅衍射进行分析该方法和常用的振幅矢量法相比，分析衍射条纹的位置更要快捷，明了。
The authors show that using the half-wave strip method to deduce the bright and dark fringe conditions of Fraunhofer grating diffraction is simpler than the amplitude vector method.
首先应用耦合波理论对体全息光栅的衍射效率以及角度选择性和波长选择性等衍射特性进行了分析。
First, the properties of volume holographic grating, such as diffraction efficiencies, Angle and wavelength selectivity, have been theoretically analyzed by using the couple-wave theory.
介绍了在常规超声波检测中获取和识别衍射波的方法及其在工作实践中的应用。
This paper introduced the method of getting and identifying diffracted wave in routine ultrasonic testing and its application in the working practice.
根据柱孔缺陷的端点反射波和衍射波的特点，分析了用端点衍射法测定柱孔类缺陷自身高度的原理。
The principle of measuring the self-height of cylindrical hole defect by ultrasonic tip diffraction technique was analyzed based on the characteristics of reflected and diffracted waves.
讨论了光栅周期、光栅深度、入射波入射角度等参数对光栅衍射特性的影响。
The effects of grating period, the grating depth , and incident angle on the grating diffraction characteristics are investigated.
第三章阐述了菲涅耳波带透镜的基本原理和标量衍射理论；
The third chapter discussed how to perform a fresnel lens with the principle of fresnel zone diffraction.
报道了一种新型毫米波天线—衍射天线的测量结果。
The measurement results for a new type of mm wave antenna—diffraction antenna were reported.
波长较长的波比波长较短的波易形成衍射。
Waves of long wavelength are diffracted more than those of short wavelength.
本文根据边界波衍射理论分析了圆孔及相位片的衍射现象，得出其轴上光强的解析表达式，并对高斯光束经相位片衍射后的轴上光强进行了数值计算和讨论。
The diffraction phenomena by a circular aperture or a phase plate is analyzed by the boundary diffraction wave theory, the analytic expression of its axial intensity is obtained.
利用耦合波理论分析了影响体积全息图的衍射效率的因素、体积全息图的角度选择性以及波长带宽等方面。
The factors which influence holography diffraction efficiency, the Angle selectivity of volume holography and wavelength bandwidth are analyzed with the coupled wave theory.
本文从衍射波扩散出发，提出了另一种分析离轴型全息图再现象与背景光分离条件的方法。
In this paper, Based on diffracted wave diffusion theory another analysis method about the condition keeping reconstructed image separate from backdrop light for off axis hologram is given.
本文从衍射波扩散出发，提出了另一种分析离轴型全息图再现象与背景光分离条件的方法。
In this paper, Based on diffracted wave diffusion theory another analysis method about the condition keeping reconstructed image separate from backdrop light for off axis hologram is given.
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