It is verified experimentally that higher diffraction efficiency and resolution can be obtained by optical fiber image plane hologram.
认为光纤象面全息图可以获得较高衍射效率和分辨率,并对此进行了实验验证。
This paper suggests a new method of rapid and automatic measuring the spectral diffraction efficiency curve of plane grating.
本文提出了一种快速自动测试平面光栅光谱衍射效率曲线的新方法。
The Angle distribution and plane distribution of the diffraction tomography with ultrashort pulse incident wave was simulated.
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。
Based on the Kirchhoff scalar diffraction theory, the principle to choose sampling periods in the input plane, output plane and transformation function was analyzed in detail.
基于基尔霍夫标量衍射理论,详细分析了输入、输出平面及变换函数抽样间距的选取原则。
A new method for measuring the spectral diffraction efficiency of plane grating with double-beam and single detector is suggested.
本文提出了一种双光束检测器测试平面光栅衍射效率的新方法。
Maxwell equations: Lorentz force, plane electromagnetic waves, radiation, light waves, reflexion, refraction, Huyghens principle, diffraction, interference phenomena.
麦克斯韦方程组:洛仑兹力,平面电磁波,辐射,光波,反射,折射,惠更斯原理,衍射,干涉现象。
From the theory of light diffraction and geometrical optics, aperture diffraction near the focal plane of microscope objectives and imaging on the image plane are studied.
从光的衍射理论和几何成象理论出发,分析研究了显微物镜焦平面附近小孔光栏的衍射和象平面位置上的成象。
When the system close -loop controlling is realized for lower frequency perturbation, the approximate diffraction limited line spread function can again be achieved on the image plane.
对于低频扰动,当系统实现闭环控制后,像面上线扩散函数已接近衍射极限。
This is mainly influenced by the filtering process in Fourier plane and the low diffraction efficiency of the encoding grating.
说明傅里叶频谱面的滤波处理及编码光栅的衍射效率对图象输出信噪比的影响。
Through theory analysis a mathmatical relation between martensitic {112} crystal plane diffraction peak is established.
通过讨论分析,建立了马氏体碳浓度与马氏体{112}晶面族衍射峰双线分离距离之间的关系式。
Physical idea of the vector method is clear, stable and convergent. The diffraction problem of plane wave with polarization incident upon 2-d sub-wavelength metal gratings can be processed.
这种矢量模式方法物理概念清晰且稳定收敛,可以处理任意偏振态平面波入射到二维亚波长金属光栅中的衍射问题。
The method suits for the diffraction of optical plane waves with arbitrary incident direction and polarization direction.
该方法适用于任意入射方向,任意偏振态入射场衍射问题的研究。
Compared with the plane wave incidence, when the Gaussian beam is incident, the center electric magnitude is smaller, but the diffraction efficiency is higher.
与平面波相比,高斯光束入射下的焦点处中心场强较小,但衍射效率较高。
A general diffraction formula for plane apertures is derived by quantum theory and the results are in keeping with the present diffraction theories that attained by other methods.
用量子理论推导的平面孔衍射积分,和现有的衍射理论完全一致。
The geometrical theory of diffraction (GTD) has been used to calculate the Roll-Plane (Equatorial-Plane) radiation of the one and two vertical monopole elements on the base of the cone.
本文应用几何绕射理论(GTD),计算了圆锥底上一元和二元垂直单振子滚动面(赤道面)的辐射图。
In this paper, the plane and anti-plane problems of the diffraction of elastic waves by a cavity filled with another medium are discussed. The method calculation, of the wave field is given in detail.
本文讨论了填充介质腔为弹性波绕射的平面及反平面问题,详细地给出了波场的计算方法。
The test problem is the initial stage of a two-dimensional diffraction and reflection of a plane shock wave, impinging on a rectangular obstacle.
所选算例为平面激波遇矩形障碍物初始阶段的绕射与反射。
In chapter 4, According to the theory of scalar diffraction, firstly, the equipollence of spatial distribution of the plane-wave interferential field and parallel projective sine grating is discussed.
在第四章,根据标量衍射理论,首先讨论了两平面波干涉场的空间分布与平行投影正弦光栅的等价性。
Segment alignment of tip-tilt is fulfilled by overlapping diffraction pattern centroids of the three individual segments on the focal plane.
该系统通过调整两块可动子镜,使其焦面光斑的质心位置与固定镜的重合校正子镜间的相对倾斜。
A good result is obtained in measuring Quartz Crystal plane angle when the method is used in automatic measure& control system of X-ray diffraction goniometer.
的自动测控系统,在对人造石英单晶切片的晶面角进行测量时,得到比较令人满意的结果。
A good result is obtained in measuring Quartz Crystal plane angle when the method is used in automatic measure& control system of X-ray diffraction goniometer.
的自动测控系统,在对人造石英单晶切片的晶面角进行测量时,得到比较令人满意的结果。
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