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衍射光学     
相关语句
  diffractive optics
     The applications of Diffractive Optical Element (DOE) to imaging system are increasing progressively along with the developments of diffractive optics.
     衍射光学元件(Diffractive Optical Element简称DOE)在成像系统中的应用随着衍射光学的发展日益广泛起来。
短句来源
     Diffractive Optics and its Application in Infrared Imaging Systems
     衍射光学及其在红外成像系统中的应用
短句来源
     Application of Diffractive Optics Elements in Maskless Lithography
     衍射光学元件在无掩模光刻中的应用
短句来源
     Limitation of scalar method to the analysis and design of diffractive optics elements
     衍射光学元件分析和设计中标量理论的局限性
短句来源
     Study for the Antireflection of the Subwavelength Diffractive Optics Elements
     亚波长衍射光学元件增透特性的研究
短句来源
更多       
  diffractive optical
     The numerical calculation results shows that the error of the diffractive optical elements optimally designed by genetic algorithm is less than 5.2% and its diffraction efficiency has attained 91.2%.
     数值计算结果表明,用遗传算法优化设计的衍射光学元件,其误差小于 5.2%,衍射效率达到 91.2%。
短句来源
     The applications of Diffractive Optical Element (DOE) to imaging system are increasing progressively along with the developments of diffractive optics.
     衍射光学元件(Diffractive Optical Element简称DOE)在成像系统中的应用随着衍射光学的发展日益广泛起来。
短句来源
     Calculation of One-Dimensional Pure-Phase Line-Imaging Diffractive Optical Element
     一维纯位相线成象衍射光学元件的计算
短句来源
     Efficiency Study for Diffractive Optical Element
     衍射光学元件的效率研究
短句来源
     Diffractive Optical Elements fabricated on GaAs
     在GaAs材料上制备衍射光学元件
短句来源
更多       
  diffraction optics
     A kind of transmission millimeter wave antenna of Fresnel zone plates with continuous phase structure was designed and fabricated with the principle of diffraction optics.
     利用衍射光学原理设计制作连续位相结构的 Fresnel波带片式的透射毫米波天线 .
短句来源
     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.
     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 .
短句来源
     It includes the geometrical optics design theory for refractive microlens and diffraction optics theory for diffractive microlens.
     包括折射微透镜的几何光学设计方法和衍射微透镜的衍射光学设计理论。
短句来源
     Using progress of diffraction optics elements, analyzed the coupling future of Laser beam and optical fiber, experimented on optimize value and interrelated factors that light beam transform in optical fiber, and discussed the application of light beam commutation in laser flexible machining PCB.
     运用衍射光学元件技术的进步,分析激光束与光纤的耦合特性。 研究和实验光束用光纤传输的优化参数取值及相关因素。
短句来源
     Based on the diffraction optics, this paper analysis the effect of aperture matching on EMR, size of focus point and focus depth of the object in detail.
     本文以衍射光学为基础,详尽地分析了光束孔径匹配对光能耦合效率、光斑尺寸、物镜焦深的影响。
短句来源
更多       
  diffraction optical
     One dimension numerical simulation based on the simulated annealing algorithm shows that the combination efficiency will be greater than 98.6 %,error is less than 9.8e 4 when the diffraction optical elementary (DOE)s phase is 16 level quantized.
     采用模拟退火算法进行的一维数值模拟结果表明 ,在衍射光学元件位相 16阶量化的情况下 ,可以实现效率为 98.6 % ,误差小于 9.8e- 4。
短句来源
     In the conditions of an known incident and exit light wave function, phase distribation of diffraction optical element is calculated by Y G algorithm.
     利用Y-G算法,在已知入射和出射光波函数的条件下,计算出衍射光学元件的位相分布。
短句来源
     The hollow optical beams have been analyzed theoretically, and have been realized experimentally by placinga diffraction optical element in the cavity.
     在理论上对空心光束进行了分析,并研制了能产生空心光束的衍射光学元件,将其插入激光谐振腔内,实现了空心激光光束。
短句来源
     The geometric law of energy conservation is utilized in designing diffraction optical component and evaluating the phase function of diffraction optical component with Gauss beams input.
     为了获取长距离超细激光束,采用几何能量守恒法设计出一种衍射光学元件,推导出高斯光入射时衍射光学元件位相函数。
短句来源
     Based on the conjugate gradient algorithm,the two-dimension numerical simulation with a 16-level phase quantized diffraction optical element(DOE) shows that the combination efficiency is about 94.8%,with an error less than 2.4%. Error analysis has been performed.
     采用共轭梯度算法进行的二维数值模拟结果表明 ,在衍射光学元件位相 16阶量化的情况下 ,可以实现的理论效率、误差分别为 94.8% ,2 .4% ,并对误差进行了分析
短句来源
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  diffractive optics
Then, a full-wave method is adopted for the analysis of the grating in the resonance domain of the diffractive optics and an algorithm based on genetic evolution is used for the maximization of its efficiency.
      
Diffractive optics implementation of time- and frequency-domain heterodyne-detected six-wave mixing
      
Z-scan sensitivity enhancement using a binary diffractive optics
      
Efficiency of Blazed Diffractive Optics Produced by Diamond Turning
      
In blazed diffractive optics produced by the diamond turning process, the finite size of the tool causes a decrease in diffraction efficiency.
      
更多          
  diffractive optical
Diffractive optical elements with a double identical microstructure for determination of statistical parameters of random phase
      
Controlled diffractive optical elements containing a vanadium dioxide film
      
It is shown that a contrast of 1:107 can be attained in diffractive optical elements, and the actuation time of the elements when switched on by an intense laser beam can be shortened to tens of nanoseconds.
      
Here, we propose to make use of a novel combination of a parabolic mirror and a diffractive optical element.
      
Starting from the results obtained in the scalar domain for the diffractive optical element that produces three equi-intense diffraction orders with the maximum efficiency, we present a full-wave electromagnetic treatment of such optimum triplicator.
      
更多          
  diffraction optics
Multisensor information fusion in neural networks on the basis of diffraction optics
      
It is shown how processing loops of different type can be realized in hybrid optoelectronic neural networks with the use of diffraction optics and holography.
      
Based on scalar diffraction optics theory, a new type of mm-wave antenna(diffraction antenna) phase-correcting Fresnel zone plate with continuous structure is described in this paper.
      
The effects of the many-wave diffraction optics in blue phases are discussed in detail.
      
In this paper, the variation of tracer image intensity with distance from the wall was predicted using diffraction optics-based approaches.
      
更多          
  diffraction optical
Binary diffraction optical element focusing a Gaussian beam to a longitudinal segment
      
A phase binary ring diffraction optical element (DOE) with a radius of 3.5 mm and microrelief height of 1.06 μm was calculated and fabricated.
      
The resultant gratings diffract the light and convert the polarization states at the same time, and have applications as diffraction optical devices.
      
This study is concerned with systems where the true criterion is the diffraction optical transfer function (OTF).
      
We have developed reflective diffraction optical elements (DOE) for focusing monochromatic coherent radiation of 400 W terahertz Novosibirsk free-electron laser (FEL).
      
  其他


This paper describes a method for calculating the optical transfer function,which not only considers the geometrical aberrations, but also the diffractionof a wavefront of light. Using this method has made it possible that thecomputed results of O.T. F. are more approximate to the O.T.F. results calcu-lated by use of the wave method than by use of the pure geometrical opticsmethod. In the paper, approach to several problems in actual computer programhas been described. The calculated results have been given,...

This paper describes a method for calculating the optical transfer function,which not only considers the geometrical aberrations, but also the diffractionof a wavefront of light. Using this method has made it possible that thecomputed results of O.T. F. are more approximate to the O.T.F. results calcu-lated by use of the wave method than by use of the pure geometrical opticsmethod. In the paper, approach to several problems in actual computer programhas been described. The calculated results have been given, and a comparisonbetween those results and known computed results has beeh made. Finally thesources of errors have been described briefly.

本文叙述一种用几何象差同时又考虑光波衍射的光学传递函数(OTF)计算方法。目的是使所计算的光学传递函数值比用纯几何OTF计算值更接近波动OTF值。文中给出了一些计算结果,并与已知数据相比较。阐述了实际计算程序中几个问题的处理;最后简要地叙述了误差源。

In order to improve the toughness of polyethylene (PE) necessary for its use as insulation covering of telephone cable for battle field service, an investigation on the blending of PE with poly (cis-1,4-butadiene) (PB) was carried out.This paper presents a study on the influence of the composition of the blends on their supermolecular structure and properties. Optical microscope, electron microscope, x-ray diffraction and optical depolarization were used for analyzing the supermolecular structure, while resistance...

In order to improve the toughness of polyethylene (PE) necessary for its use as insulation covering of telephone cable for battle field service, an investigation on the blending of PE with poly (cis-1,4-butadiene) (PB) was carried out.This paper presents a study on the influence of the composition of the blends on their supermolecular structure and properties. Optical microscope, electron microscope, x-ray diffraction and optical depolarization were used for analyzing the supermolecular structure, while resistance to repeated folding was used as a measure of flexibility of the blends.It is shown that before PB changed from dispersed phase to continuous phase, the higher the content of PB, the better the flexibility of the blends, and that the flexibility of the blends could be increased to 7.6-11.5 times of that of PE at optimum blending compositions, regardless of whether the PE used was linear, branched or of different molecular weight.

聚乙烯(PE)用顺-1,4-丁二烯(PB)增韧改性以获得耐卷绕的被复线(一种野外用电话线)。采用光学显微镜、电子显微镜、X-射线衍射、光学解偏振等技术研究不同共混组成对序态结构的影响,以及序态结构与耐折性能之间的关系。结果表明,当PB由分散相开始转变成连续相以前,PB用量愈多,共混材料的耐折性能愈好。不论是线型、支化或分子量不同的PB,经用PB增韧后,其耐折性能可提高7.6—11.5倍左右。

An optical bistable device based on Eaman-Nath acoustooptic diffraction is reported. Intensity curves of diffracted light from a Raman-Nath acoustooptic modulator are recorded. The bistability of the first-order diffracted light intensity as a function of the input intensity is presented. Three modes of operation are possible for this acoustooptic bistable device. As a potential application, the acoustooptical bistable device can be used as a multi-channel switch.

本文提出一种基于喇曼-奈斯(Raman-Nath)声光衍射的光学双稳装置。实验记录了喇曼-奈斯声光调制器的衍射光强特性曲线。显示了一级衍射光强相对输入光强的双稳特性。这种声光双稳装置可采用三种工作方式,其一种用途是可以作为多通道开关。

 
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