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空间相干     
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  spatial coherence
     The temporal and spatial coherence of light emitting diode (LED) is studied by Michelson interferometer with subfemtosecond time resolution.
     由相干度理论和准单色光理论出发研究了发光二极管(LED)的时间相干与空间相干特性,并采用时间分辨 为亚飞秒的迈克尔逊干涉仪对LED的相干度进行了测量记录。
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     A spatial coherence model of seismic ground motion for design application
     面向设计应用的地震动空间相干函数模型
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     Based on the interpretation for the fringes of equal thickness, we proposed the two dimensional longitudinal spatial coherence function.
     从等厚干涉的解释出发,推导出了二维空间的相干方程. 基于空间相干方程,利用SLM产生了一个新的空间非相干光源.
短句来源
     A spot,that is distribution of optical field,was recorded by positive photoresist (PMMA) located at object plane under the condition of a condenser zone plate which center wavelength is 3.2nm and a pinhole of 30μm diameter combination. The diameters of Airy diffraction pattern and spatial coherence area were obtained from the spot.
     利用放置在物面上的高分辨正性光刻胶 ,记录了中心波长为 3.2 nm的波带片和针孔直径为30 μm组合的光场分布 (光斑 ) ,获得相应条件下的爱里斑及空间相干直径实验数据 ;
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     Based on the ray theory, integral expression was derived for the spatial coherence matrix of the sound pressure and the particle velocity in a stratified ocean with dipole noise sources homogenously distributed on the surface.
     假定海洋介质水平分层,非相关偶极子噪声源均匀分布于海面,由射线声学理论出发,导出了计算噪声场中声压和质点振速的空间相干矩阵的积分表示式。
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  spatially coherent
     Spectral Anomalies of the Polychromatic,Spatially Coherent Light Diffracted by an Annular Aperture
     多色空间相干光经过环形光阑衍射之后的光谱奇异现象
短句来源
     Starting from the propagation law of partially coherent light and using a typical partially coherent light, i.e., Gaussian Schell-model (GSM) beam describing the multimode laser in practice, I present in this dissertation the research results on vectorial partially coherent light, spectral changes of partially coherent light passing through optical element, spectral switch of partially coherent light diffracted by an aperture, and the spectral anomaly of diffracted fully spatially coherent light by an aperture.
     本文从部分相干光的传输理论出发,以模拟实际多模激光的一类典型部分相干光——高斯-谢尔模型(GSM)光束为主要研究对象,对矢量部分相干光、部分相干光通过光学元件的光谱变化、被光阑衍射的部分空间相干光的光谱开关和被光阑衍射的完全空间相干光的光谱异常等现象进行了深入研究。
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     More recently, singular optics has been extended to polychromatic cases by Professor Wolf and his co-workers, in which they have showed that drastic spectral changes occur in the vicinity of intensity zeros in the focal region of polychromatic, spatially coherent, converging spherical waves, i.e. the spectrum is redshifted at some points, blueshifted at some other points, and is split into two peaks elsewhere.
     最近,Wolf教授和他的同事们指出:在多色空间相干会聚球面波焦点区域振幅等于零的点附近会发生剧烈的光谱变化,即在一些点处光谱为红移,在另一些点处光谱为蓝移,在其它点处光谱则分裂为双峰结构。
短句来源
     By using the theory of partially coherent light,the multi mode laser beams behaving like Gaussian Schell model(GSM) beams have been represented by the superposition of spatially coherent modes,which may be mutually correlated. The analytical expressions for the mode coherence cofficients have been given in the rectangular coordinate system. Furthermore,based on the M 2 factor concept,the theory of the mode decomposition of multi mode laser beams has been built up for the general case,where the mode correlation is considered.
     对多模激光的模相关和相干模表示作了深入的理论研究.利用部分相干光理论,将与高斯谢尔模型光束等效的多模激光表示为空间相干,并且彼此可相关模式的叠加.给出了直角坐标系下模相关系数的解析表达式.基于M2因子概念,建立了在考虑模式相关的一般情况下的多模激光模分解理论.
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     These behavioral results suggested that temporal incoherent but spatially coherent ELF magnetic field with lower intensity can mitigate the adverse response of rats to CW fields.
     这一动物行为学结果暗示 ,时间不相干而空间相干的低强度ELF噪声磁场能长程抗拮大鼠对连续微波的负作用。
短句来源
  spatial coherent
     A concept of redundant illumination is introduced to ensure the spatial coherent illumination of the imaging element.
     引入了冗余照明的概念,以保证成象元件的空间相干照明。
短句来源
     Finally the thesis uses different spatial coherent functions and changes decay factors to analyze the effect of spatial correlation on the distribution of the mode contribution factors and the validity of Ritz vectors.
     最后选用不同的空间相干函数和改变衰减系数的取值,分析了空间相关性对模态贡献系数分布和里兹向量有效性的影响。
短句来源
     In addition, some calculation comparisons are given in the selection of the modal numbers in frequency-domain analysis, the influence of spatial coherent function, the effect of modal damping ratio and the cross terms of all computing modals.
     对频域法计算过程中的组合模态数的选取、空间相干函数的影响、模态阻尼比的影响、模态耦合项的影响等问题进行了一些计算比较。
短句来源
     This article introduce the principle of Minimum-Norm method in detail, and remonstrate the fact that the Minimum-Norm method can not resolve the spatial coherent signals through simulation.
     本文详细地介绍了最小模方法的原理,并通过仿真指出了最小模算法对空间相干信号难以区分的缺点。
     The average spatial coherent characteristics of laser light transmittingtlirougii a multimode fiber may be determined by means of measuring the contrast of speckle patterns projected from a multiniode fiber, and a methods for measurement of characteristics of laser light passing through a multiniode fiber is given.
     本文从简化的理论分析和对多模光纤模斑图样的对比度测定,可确知光纤中传输激光的空间相干特性,并给出一种测量多模光纤后空间相干性的方法.
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  “空间相干”译为未确定词的双语例句
     Based on Hong Hao's two dimension coherence model, asynchronous seismic model is developed by two dimension stochastic vector process.
     对主要的非一致地震激励模型进行分析和评价,基于Hong Hao的二维空间相干函数模型,采用矢量随机过程建立非一致地震激励模型。
短句来源
     Hao抯 model of coherency function is used to describe the vertical space coherency function.
     在总结前人研究成果的基础上,采用Hao提出的相干函数模型来描述竖向地震动场空间相干函数。
短句来源
     SPACE COHERENCY FUNCTION MODEL OF VERTICAL GROUND MOTION
     竖向地震动场的空间相干函数模型
短句来源
     By observing the flame distribution of a burning flame ring, this experiment vividly shows the condition of the two oppositely travelling wave trains which cohere in the space of the ring and form standing, waves.
     本实验通过观察火焰环燃烧的火苗分布,形象生动地展现了两列相向传播的波列在环内空间相干并形成驻波的情况。
短句来源
     In this paper an improved spatial smoothing technique for direction-of-arrival estimation of coherent signals is proposed,which we call 搘eighted spatial smoothing (WSS)?
     提出了一种用于空间相干源DOA估计的加权空间平滑算法(WSS, weighted spatial smoothing)。
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  spatial coherence
Based on electromagnetic theory, a computing model of the Talbot interferometer is established with the temporal and the spatial coherence taken into account and with the turning angle of the reflectors as a critical parameter.
      
This algorithm is based on the interrelation between the spatial coherence of structural fragments in nanoparticles and the geometric connection in the corresponding associated bundle.
      
Nonlinear resonance induced by the higher spatial coherence harmonics
      
The resonance was caused by the higher spatial coherence harmonics on the test transition.
      
Such parameters can be the spatial coherence of incident radiation, the direction of the momentum transfer relative to the specular diffraction plane, or the X-ray wavelength.
      
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  special coherence
Amplitude interferometers do not have a limitation on the special coherence of the laser source and can probe larger objects.
      
  spatially coherent
The poorly studied, spatially coherent large-scale structures on the solar surface characterized by sectorial-hemispheric asymmetry may be produced by ultralow-frequency nonlinear oscillations of the Sun.
      
If this ratio is more than 2, the above deviation does not exceed values permissible for devices using spatially coherent light (e.g., for free-space optical communication systems).
      
Spatially coherent radiation from a coaxial free-electron laser with a resonator composed of one-dimensional and two-dimensional
      
It is shown that cw spatially coherent lasing may be achieved with an oversize parameter of the order of 50 with the excitation of supermodes comprising a set of " cold" waveguide modes.
      
It is demonstrated that this design provides for a possibility of obtaining spatially coherent radiation from a sheet electron stream with the cross size exceeding the wavelength by several orders of magnitude.
      
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  spatial coherent
The proper orthogonal decomposition theorem (Loève, 1955) of probability theory has been proposed by Lumley (1967, 1972, 1981) for detection of spatial coherent patterns in turbulent flows.
      
Development of a full spatial coherent X-ray laser at 13.9?nm
      
From the measurement of visibility, it was found that the spatial coherent length was longer than the beam diameter.
      
Slowness values resulting from spatial coherent energy (signal) and incoherent background noise are distinguished by the simultaneous evaluation of an instantaneous coherence criterion g(x, t).
      
The simulation of spatial coherent series from multisite data is still a challenging problem.
      
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The coherence properties of a Q-switched frequency-doubled Nd:YAG laser havebeen investigated by a Michelson interferometer and photography.In this experi-mental study,coherence degree |γ_(τ)| was measured as a function of pathlengthdifference and of ratio of input energy to threshold input energy.The coherencelength measured was 40mm at a ratio of input energy to threshold energy of 3.2.Spatial coherence of beam was deduced from the fringes formed by a Michelson inter-ferometer in which the laser beam interferes...

The coherence properties of a Q-switched frequency-doubled Nd:YAG laser havebeen investigated by a Michelson interferometer and photography.In this experi-mental study,coherence degree |γ_(τ)| was measured as a function of pathlengthdifference and of ratio of input energy to threshold input energy.The coherencelength measured was 40mm at a ratio of input energy to threshold energy of 3.2.Spatial coherence of beam was deduced from the fringes formed by a Michelson inter-ferometer in which the laser beam interferes with itself after being rotated 180°,Theexperimental results were physically interpreted.

用迈克尔逊干涉仪及照相法研究了Q 开关Nd:YAG 倍频激光的相干特性。在该实验研究中,测量了相干度|γ(τ)|与程差及输入能量和输入阈值能量比值的函数关系,在输入能量和阈值输入能量比值为3.2时,测得相干长度是40mm,用一迈克尔逊干涉仪,激光束旋转180°后再与自己干涉,从所成干涉条纹可以推断光束的空间相干性。本文对实验结果作了物理解释。

This paper presents coherence concepts including time coherence, spatial coherence and complex correlation function.

本文介绍光的相干性概念,其中包括空间相干性、时间相干性和复相干函数。

In the present paper we have suggested a method of measuring the spatial coherence of light beam—the holographic shearing interferometer, and also given the experimental measured resuIts of the spatial coherence of copper vapor laser beam.

本文提出一种测量光束空间相干性的方法——全息剪切干涉法,并给出对铜蒸气激光束空间相干性测量的实验结果。

 
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