衍射效率

用Q因子方法简单估算了侧壁倾斜误差对衍射效率的影响。

The influences of tilt errors to diffractive efficiency were estimated .

然后求出了N阶二元闪耀光栅衍射效率公式；

Then the diffractive efficiency formula of N - step binary blazed grating is obtained by this deduction .

透射光栅对软X射线衍射效率的研究

Study of transmission grating diffraction efficiencies for s of T x rays

在此基础上用正弦函数的高次幂作为光栅的槽形函数编写了介质膜光栅衍射效率计算程序，数值计算结果表明了C方法在计算介质膜光栅衍射效率的可行性。

The feasibility of calculating the diffraction efficiency of dielectric reflection grating with C method are proved with computation results .

微透镜的测试主要包括衍射效率（diffractiveefficiency）和点扩散函数（PSF）的测试，有直接法和间接法两种测试方法。

The measurement of microlenses includes diffractive efficiency measurement and point spread function measurement .

声光调QDPL中衍射效率对激光输出特性的影响

Effect of diffraction efficiency on output characteristics of A-O Q-switched DPL

同时，如果不考虑微透镜的衍射效率，当球面折射微透镜的F数越大，高斯光束经过准直变换后的远场发散角越小。

If diffractive efficiency is not considered , the numerical results show that larger f number microlens has smaller divergence angle .

RAP晶体积分衍射效率的实验研究

Experimental Research on Integral Diffraction Coefficient of RAP Crystal

大面积LiF晶体积分衍射效率的标定

Calibration of Integral Diffraction Efficiency for Large Area LiF Crystal

用双光子固定法测量了In∶Mn∶Fe∶LN晶体的二波耦合衍射效率。

The two-wave coupling diffraction efficiency of In ∶ Mn ∶ Fe ∶ LN was measured by the two-photon fixed method .

VCD和DVD用全息光栅衍射效率的分析

Analysis of Diffraction Efficiency of the Holographic Optical Elements in VCD and DVD

以一个SiO2/Ni硬X射线溅射切片波带片为例，计算了两种材料的相互扩散和粗糙度对衍射效率和分辨率的影响。

And the influence of interdiffusion and roughness on the diffraction efficiency and resolution of a SiO_2 / Ni hard X-ray sputtered sliced zone plate is analyzed .

建立了液晶光栅与等效矩形光栅之间的理论模型，且计算了零级衍射效率和槽深h的理论数据。

This paper built theoretic model between the liquid crystal and the equivalent regular grating , and calculated theoretic data of the zero order diffractive efficiency and groove depth h.

Ce∶BaTiO3中光折变光栅衍射效率上升现象及分析

Behaviors and Analysis of Diffraction-Efficiency Ascending of Photorefractive Grating in Ce ∶ BaTiO_3

理论分析和实验测试证明，该工艺方法能够将MEMS闪耀光栅的衍射效率提高10%左右。

Theoretical analysis and experiments have demonstrated that the technology can improve diffraction efficiency of MEMS blazed gratings for about 10 % or so .

在双掺杂的Ce∶Fe∶LiNbO3晶体中得到强纵向光伏效应，该效应可以对衍射效率产生59.7%的调制；

Strong lognitudinal photovoltaic effect can be got in Ce ∶ Fe ∶ LiNbO 3 , which can modulate the diffraction efficiency at the rate of 59.7 % ;

组合外加电场提高Fe∶LiNbO3中90°记录体全息的衍射效率

Enhancement of Diffraction Efficiency for 90 ° Recording Geometry Hologram by the Application of Combined External Electric Fields in Fe-Doped LiNbO_3 Crystals

分析了声光调Q激光器的两个阈值，并引入调制深度的概念，讨论了衍射效率对调制深度的影响，得出了声光调Q的最小衍射效率。

The two thresholds of acousto-optical Q-switched laser is analysed , and the modulation depth is introduced in A-O Q-switched laser . The effect of diffraction efficiency on modulation depth is studied .

应用FDTD方法计算了单色平面波斜入射时1维介质光栅的近场，进而求出介质光栅的衍射效率。

In this paper , FDTD method incorporated with periodic boundary condition is applied to solve the near fields for dielectric gratings with plane wave illumination .

LiNbO3：Fe晶体中双光束耦合衍射效率的研究

Study on Diffraction Efficiency in the LiNbO_3 : Fe Crystal Using Two Wave Mixing

另外，在衡量全息聚合物分散液晶Bragg体光栅的性能时，高的衍射效率、低的阈值和关闭电压和快的效应速度是必要的参考指标。

Besides , high diffraction efficiency , low threshold and turn-off voltages and fast response time are necessary gauges to evaluate the holographic polymer dispersed liquid crystal Bragg volume grating .

与Fe∶LiNbO3相比，Zn∶Fe∶LiNbO3晶体响应速度快，且衍射效率较高，并具有较宽的角度响应范围，是一种优良的全息记录介质材料。

The response speed of Zn ∶ Fe ∶ LiNbO 3 is faster than that of Fe ∶ LiNbO 3.The diffractive efficiency was measured to be higher than 80 % and with a broad angle range .

高频高衍射效率H-PDLC体全息光栅的研究

The study of H-PDLC volume holographic grating with high diffraction efficiency

与分步优化多焦点算法进行了比较，并用MATLAB编程计算得到所提出的方法，不仅算法速度快，同时衍射效率也更高。

Based on MATLAB and worked out by the computer , both the faster speed and the higher diffraction efficiency for the one-step algorithm can be obtained than those for multi-step circle algorithm of optimizing multi-focus diffraction element .

通过利用严格的耦合波理论计算光栅衍射效率的方法，分别编制出了计算TE波和TM波的衍射效率程序。

Using the method of rigorous coupled-wave theory to compute the diffraction efficiency of a grating , the program for calculating diffraction efficiency for both TE and TM polarization is made .

论文以两种理论的衍射效率特性曲线的相关或衍射效率计算差别作为判断标准，分析在Bragg条件和偏离Bragg条件下的Kogelnik耦合波理论的近似条件。

The approximation conditions under Bragg condition and deviating Bragg condition are analyzed with the judgment standards of the correlation of diffraction efficiency curves or the difference of diffraction efficiencies between two theories .

对二极管泵浦固体激光器（DPL）声光调Q过程进行分析，得出了在一定的泵浦速率和重复率下，衍射效率对输出特性的影响。

Process of acousto-optical Q-switched was analyzed in DPL , at certain pumping rate and repetitive frequency , and the influence of diffraction efficiency on output characteristics was obtained .

将严格耦合波分析理论与遗传算法相结合，设计了高衍射效率的亚波长Dammann光栅。

High-efficiency Dammann gratings were designed based on the genetic algorithm and rigorous coupled-wave analysis theory .

AOM衍射效率的非线性使显示图像的灰度失真，必须实时校正。

The nonlinearity of AOM diffraction efficiency will lead to tonal distortion . Real-time calibration must be put in practice .

结果表明，随着F数的减小，标量理论和严格矢量理论得到的透镜衍射效率之差逐渐加大；

The results show that diffractive efficiency increases with an increasing number of F-number s and with an increasing number of phase levels , and that the differences between scalar and electromagnetic theory increases with an reducing number of F-number .