Fresnel diffraction model is used to simulate this diffraction normally.
一般的模拟分析中，都是利用菲涅尔近似模型进行分析。
It is pointed out that the non-diffracted beam is a kind of Fresnel diffraction phenomenon.
同时指出所谓无衍射光束实际上是一种菲涅耳衍射现象。
The diameter of a thin wire was obtained by measuring the shadow in the Fresnel diffraction zone.
通过细丝后在其后菲涅耳衍射区留下阴影，测量阴影宽度可得细丝直径；
In this paper, we presented the method that implement inverse calculation of Fresnel diffraction.
本文基于菲涅耳衍射计算公式，给出了实现衍射逆运算的方法。
The Fresnel diffraction formula and the Fourier transforms are used to get the intensity distribution formula.
采用菲涅耳衍射公式和傅里叶变换得出了输出面上的光场的理想计算公式。
The inverse calculation for the phase of optical wave field of Fresnel diffraction is a significant but difficult work.
衍射光场的相位逆运算是有意义并且困难的工作。
At last the light intensity distribution of Fresnel diffraction at several rectangular apertures is calculated and analyzed.
最后计算分析了多矩孔菲涅尔衍射的光强分布。
The diffraction of Gaussian beams at an square aperture is studied based on the Kirchhoff and Fresnel diffraction integrals.
使用基尔霍夫衍射积分公式和菲涅耳衍射积分公式对高斯光束通过方孔光阑的衍射进行了研究。
The new image encryption algorithm was proposed based on multiple Fresnel diffraction transforms and phase encryption masks.
基于多重菲涅耳衍射变换和相位密码板，设计了一种新的图像加密计算方法。
The intensity distributing and the contributing range for using the serrated aperture are analyzed based on Fresnel diffraction theory.
应用菲涅耳衍射光强分布理论以及光上光强分布理论对波纹光阑在一定条件下的作用范围进行了分析。
The formula of numerical computing is presented with discretion for Fresnel diffraction and phase numerical reconstruction of wave front.
从光的菲涅耳衍射、波前相位重构入手，对连续信号进行了离散化处理，给出了数值计算公式。
Basing on the light diffracting theory of Kirchhoff, we obtain the expression for the intensity of speckles in deep Fresnel diffraction region.
本文利用基尔霍夫近似理论，对菲涅耳极深区相干散斑和部分相干散斑进行了理论研究和计算模拟。
First, based on the theory of Fresnel diffraction, the diffraction patterns are analyzed when the point source at the front focus or it's nearby of the lens.
首先，利用菲涅耳衍射理论，分析了无衍射成像系统中点光源在透镜焦点及焦点前后所产生的无衍射光斑形式。
The amplitude and intensity analytic expressions for disk (sphere) and annular aperture Fresnel diffraction are given on the base of scalar diffraction theory.
在标量衍射理论的基础上，给出了圆屏(球)和圆环菲涅耳衍射的振幅及光强解析表达式。
When diffraction problems are solved by the angular spectrum theory, high speed and high accuracy can be obtained, especially for near-field Fresnel diffraction.
用角谱理论来处理衍射光场，不仅速度快，而且在处理近场菲涅耳衍射光场时的准确度是其它方法无法比拟的。
A method, which is based on the theories of color synthesizing and Fresnel diffraction, is proposed for computer generating hologram and numerical reconstructing color object.
提出了一种基于色彩合成以及菲涅尔衍射原理，用计算机产生全息图并用数字方法再现彩色全息图的方法。
It is discorered that circular hole diffraction and circular disk diffraction pattern in large aperture convergent beam are different from those of general Fresnel diffraction.
实验中发现，经常使用的大孔径会聚光束的圆孔和圆屏衍射图样不同于一般的菲涅耳圆孔和圆屏衍射图样。
Intensity space distribution near image point of optical system is derived based on the accurate amplitude (therefore the intensity) analytic expression for Fresnel diffraction.
根据准确的菲涅耳衍射振幅和光强解析表达式推导出光学系统像点附近的光强空间分布。
A binary Fresnel lens with 8 phase steps can be manufactured with micro-optical element fabricating technology and three times of alignment according to Fresnel diffraction theory.
根据菲涅耳衍射理论，采用微光学元件制作技术，通过三次套刻制作出八位相台阶的二元离轴菲涅耳透镜。
Based on the generalized Huygens-Fresnel diffraction integral, the analytic propagation expressions for Lorentz beams passing through first-order axisymmetric optical system are derived.
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。
With the Fresnel diffraction approximation method, the influences of the collimated lens and standard lens surface errors on the transparence testing are analyzed in Fizeau interferometer.
根据菲涅耳衍射近似理论，就菲佐干涉仪中的准直镜和标准镜面形误差对透过检测的影响进行了研究。
Based on the Fresnel diffraction of the round hole, the Fresnel diffraction oft he circular grating is discussed. The computer simulations of the diffraction in tensity distributions is given.
在圆孔的菲涅耳衍射的基础上，讨论环形光栅的菲涅耳衍射，并给出了计算机仿真结果。
The elegant Laguerre-Gaussian (L-G) beams and their propagation properties are studied in detail using the propagation equation derived from the generalized Huygens-Fresnel diffraction integral.
用由广义惠更斯菲涅耳衍射积分推导出的传输方程详细研究了复宗量拉盖尔·高斯光束及其传输特性。
The propagation formula of the cross-spectral density of partially coherent flattened Gaussian Beam(PCFGB) through ABCD optical system was derived using Huygens-Fresnel diffraction integral formula.
利用惠更斯-菲涅尔衍射积分公式导出了部分相干平顶高斯光束（PCFGB）通过ABCD光学系统的传输公式。
This paper has briefly stated how Huygens-Fresnel Principle and Fresnel half - zone method are combined in the teaching of single-slit diffraction.
本文简要论述了在单缝衍射教学中怎样把惠更斯—菲涅耳原理与菲涅耳丰波带法联系起来。
Topics covered in wave optics include: basic electrodynamics, polarization, interference, wave-guiding, Fresnel and Fraunhofer diffraction, image formation, resolution, space-bandwidth product.
涵盖的主题包括：在波动光学基本电动力学，极化，干扰，波导，菲涅耳和夫琅和费衍射，成像，分辨率，空间带宽产品。
A kind of diffraction element modulating phase information by LC space light modulator to get a zoom Fresnel lens, as well as the using of said element to optical imaging system, is introduced.
本文介绍一种以液晶空间光调制器作为调制位相信息的衍射元件，获得可变焦长的菲涅耳透镜，以及该元件在光学成像系统中的应用。
The invariable loss comes from the materials and surface processing of the system itself, such as the loss of Fresnel, ball aberration, diffraction, chromatic aberration and absorb.
固定损耗是由系统自身所用材料、表面处理决定的，包括菲涅耳损耗、球差损耗、衍射损耗、色散损耗、吸收损耗等。
The way is simple and visual, the physical thinking of Huygens-Fresnel principle is incarnated fully, it helps to understand the quiddity of single slit Fraunhofer diffraction .
该方法简单、直观，充分体现了惠更斯-菲涅耳原理的物理思想，有助于更好地认识和理解单缝夫琅和费衍射的实质。
Brsed on the wave theory of optics, the affect caused by the phase error in Fresnel near-field diffraction equation is analysed.
根据波动光学的理论，对菲涅耳近场衍射公式误差相位的影响进行了分析。
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