Fresnel diffraction
英
美
网络 菲涅耳衍射; 菲涅尔衍射
双语例句
- A Numerical Computing Method for the Fresnel Diffraction of Rectangular Aperture
矩孔菲涅耳衍射的一种数值计算方法 - 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。 - 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。 - Staring from Fresnel diffraction integral, we deduced the optical intensity distribution in the Fresnel zone of the diffraction field of the annular-aperture lens axicon.
从菲涅耳衍射积分公式出发，推导多色高斯光束被球差透镜衍射后光强分布的解析公式，进行数值模拟和物理分析。 - Fresnel Diffraction Transform and its Application in the Design of Binary Optics
菲涅耳衍射变换及其在二元光学设计中的应用 - Design of diffractive optical element for beam smoothing in Fresnel diffraction region
菲涅耳区衍射光学束匀滑器件的设计 - Theory Research on Fresnel Diffraction Hologram Display with DMD
数字微镜用于菲涅耳衍射全息显示的理论研究 - Based on the Fresnel diffraction theory, the influence of the vertex manufacture precision of an axicon on the light propagation is analyzed in detail.
由菲涅耳衍射理论出发，分析了轴棱锥顶点加工精度对光束传输特性的影响。 - Analysis and discussion on the similarity of Fresnel diffraction patterns
关于菲涅耳衍射图样相似性的分析与讨论 - Analysis and Simulation of the Plural Amplitude and Distribution of Optical Intensity about Fresnel Diffraction of Ronchi Grating on Spherical Wave A Fast SA Algorithm for the Design of DOE for Uniform Illumination
球面波照射下Ronchi光栅的菲涅尔衍射及计算机模拟一种用于均匀照明的衍射光学元件设计的快速模拟退火法 - 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。 - By use of Fresnel diffraction and traditional holographic theory, this paper gives some quantitative analysis of the object image relation and the resolution of digital holography by computer simulation and corresponding experiment.
用菲涅耳衍射和振幅全息的理论，分析了数字全息的物像关系和再现像的分辨率，并进行相应的数值模拟和实验研究。 - The spatial distribution of Fresnel diffraction field of binary phase gratings is analyzed by using RSD theory.
利用平面波衍射的角谱理论，分析计算了二元相位光栅衍射光场的空间分布，特别讨论了离焦量和非单色光对泰伯像的影响。 - An equation for calculating the Fresnel diffraction field of a grating under short pulsed light illumination is derived.
首先导出了光栅在短脉冲激光照射下的菲涅耳衍射光场的方程，利用该方程分析了一个开口比为1∶4的光栅的衍射光场。 - In this paper, the main innovative ideas are as following: 1. By using the theories of Fresnel diffraction and holography, theoretical analysis and experiment of the recording and reconstructing of premagnification and phase-shifting in-line lensless Fourier digital holography are illuminated.
利用菲涅耳衍射和全息理论，对预放大相移同轴无透镜傅里叶变换显微数字全息术的记录和再现进行了详细的理论分析和实验研究。 - Here, the spatial distribution of Fresnel diffraction field and different Talbot effects of sinusoidal grating are presented, under three different illuminating conditions.
本文主要是计算了在平面波、高斯平面波和发散球面波这三种不同的光波照明条件下的正弦光栅的菲涅耳衍射光场的空间分布特征和泰伯效应的不同表现情况。 - In the Fresnel diffraction field, the variation of contrast, phase and period of the grating's image are derived theoretically in the plane offseted from the Talbot self-imaging plane under the coherent illumination.
本文从理论上导出了相干光照明了菲涅耳衍射场中离开泰伯自成像平面时光栅像的反差、位相和周期的变化。 - A UV-exposure model and a dimensional tolerance model based on Fresnel diffraction theory are established by considering the impact of the refractive index and absorption coefficient of SU-8 photoresist on dimensional precision of UV-lithography.
在考虑了SU-8的吸收系数和折射系数对紫外光刻尺寸精度影响的基础上，根据菲涅耳衍射理论建立了紫外曝光改进模型和尺寸公差模型，对SU-8微结构的尺寸及其公差进行数值模拟。 - The angle spectrum analysis technique is a common method to calculate the Fresnel diffraction.
菲涅尔衍射和分数傅里叶变换之间存在非常密切的关系，而角谱分析方法是计算菲涅尔衍射的一个有效的方法。 - Based on Fresnel diffraction theory, an UV-exposure model and a dimensional tolerance model were established.
本文根据菲涅耳衍射理论建立了紫外曝光模型和尺寸公差模型。 - Based on the theory of scalar diffraction, the diffraction of a uniform plane wave at two asymmetrical rectangular apertures is studied analytically and numerically. The transversal, on-axis and off-axis intensity distributions of the Fraunhofer and Fresnel diffraction are given and analyzed.
基于标量衍射理论，对均匀平面波通过两个非对称双矩孔的衍射作了解析研究和数值计算，给出了夫琅和费和菲涅耳衍射的横向、轴上和轴外光强分布。 - Some new results for Fresnel diffraction characteristics of Gaussian beams are obtained.
此外，还得到了其菲涅耳衍射特性的一些新结果。 - Based on the theory of diffraction, we push over the Fraunhofer and Fresnel diffraction of obscuration.
根据单缝衍射理论推导散射点的夫琅和费和菲涅耳衍射规律，分别给出了散射点的夫琅和费和菲涅耳衍射的复振幅分布情况。 - 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 Fresnel diffraction equation of a grating under chirped ultrashort pulsed laser illumination is given through Fourier spectrum analysis, and the Talbot effect of the grating is studied using the equation.
应用傅里叶频谱分析法，给出了光栅在啁啾超短脉冲光波照射下菲涅耳衍射方程并分析了其Talbot效应。 - By using Fresnel diffraction and holographic theory, some detailed analysis of the recording, numerical reconstructing method and the characters of the reconstructed image about lensless Fourier digital holography and phase-shifting digital holography is given.
应用菲涅耳衍射和全息理论，详细分析了无透镜傅里叶变换数字全息图的记录、再现方法和再现像的特点，分析了相移数字全息图的记录和再现方法，并进行了相应的实验验证。 - The limit of Fresnel diffraction formula when λ z → 0 and its physical meanings are also discussed.
同时讨论了菲涅耳公式中当λz→0时的极限情况及其物理意义。 - We also research the reconstruction of optical field of circular aperture in Fresnel diffraction region by using the theory and technology of digital holography as well as diffraction calculation and the algorithm of phase un-wrap.
并用数字全息理论与技术，结合衍射计算和相位解包裹算法，研究了圆孔衍射在菲涅耳衍射区的光场重构。 - It is very useful for designing multi-focus Fresnel diffraction elements with the presented optimization methods.
我们提出的优化方法是设计多焦点菲涅耳衍射元件很有效的方法，它具有衍射效率高和优化速度快等优点； - Near-field and far-field Fresnel diffraction during MATLAB simulation are discussed respectively.
讨论利用MATLAB分别模拟菲涅耳衍射的近场和远场情况。