The on - off of the first diffraction order of the grating is 87:1. The sample shows good switch ability.
制得的光栅其第一衍射级次的开关比为87：1，显示了较好的开关能力。
What remain to be improved are the effect of the general noise in grating-making on the output quality and the imbalance of diffraction order intensity.
光栅制作时引入的综合噪音对输出质量的影响及各衍射级能量的不均衡问题尚待进一步改进。
The relationships between the number of diffraction order and grating pitch, refractive index of medium, light wavelength, incidence Angle and azimuth Angle are investigated.
讨论了入射角、入射方位角、入射光波长、光栅栅距、介质折射率与矩形光栅衍射级次数目间的关系。
Some parameters, such as the core width, pitch of adjacent waveguides, diffraction order, number of arrayed waveguides, and propagating wavelength are optimized for the purpose of actual design.
并对波导芯尺寸、相邻阵列波导间距、衍射级数、阵列波导数等参量进行了优化，得到了器件实际设计所需要的相应的参数值，从而达到优化器件设计的目的。
At the same time, degrees of polarization (DOP) of every diffraction order periodically alter with change of polarization orientation.
且各级衍射光的偏振度随着透振方向的改变而发生周期性的变化。
The effect on amplitude of EXAFS from harmonic caused by high order diffraction of crystal monochromator is discussed.
本文讨论了晶体单色器高次衍射形成的谐波对EXAFS振幅的影响。
The second order diffraction light of Rayleigh scattering light, Raman light, diffused light and the fluorescence diffracted from the grating have been discussed.
本文讨论了瑞利散射光、拉曼散射光、漫散射光及荧光经光栅衍射而形成的高级次光谱的干扰。
Zero-order diffraction light spot can influence the detection of the correlation peak in joint transform correlator.
联合变换相关器的零级衍射光斑会影响相关峰探测。
The physical process of diffraction by planar gratings'is analysed, based on the generalized second-order coupled-wave theory.
本文从推广的二阶耦合波理论出发，对平条纹面光栅衍射这一物理过程进行分析。
A new theoretical analysis of the contrast reversal images for the zeroth and other diffraction order encoded by a rectangular grating is given.
本文对矩形光栅编码图片的衍射零级与其它各级单独所成的象，其衬度能够反转的现象，提出了新的理论分析。
In order to improve the convergence rate, a correct Fourier expand method was introduced to differential theory of the finite conductivity diffraction grating.
在有限电导率光栅的微分理论中引入校正傅里叶展开方法，改善了计算收敛性。
This method is applied to calculate the diffraction efficiencies accurately for arbitrary grating profiles, incident angles, substrate indexes and wavelengths in the same order of grating period.
这种方法适用于光栅周期处于波长量级、任意光栅轮廓及倾斜入射时的精确衍射效率计算。
A new indexing method on the spots of high order Lane zone in electron diffraction pattern has been developed.
对于电子衍射谱的高级劳厄带斑点标定，提出一种新的方法。
Composition of inorganic phases and order degree of lamellar structure were characterized by X-ray diffraction (XRD).
用XRD表征了合成产物的无机相组成和层状结构的有序度。
The elimination of the zero-order diffraction and conjugate image in the digital holography is the key factor influencing whether or not the holography is utilized widely.
数字全息中直透光和共轭像的去除是影响到全息能否得到更广泛应用的关键因素。
In order to improve the contrast of reconstruction images for the materials which their elements absorbance index are very close, the technique of diffraction enhanced SR-CT is developed.
针对吸收系数相近的多组分材料，吸收成像无法分辨的情形，提出了衍射增强SR - CT方法。
Methods of distinguishing the first order diffraction spectrum from other order one have been described in detail by observing half- widths, locations and intensities of the spectrum.
提出了用峰位、半峰宽和峰高和滤光法来鉴别各级光谱的方法。
The key of this paper is the solution of the second-order double-frequency wave exciting force for a floating body sailing in waves by solving second-order diffraction potential.
本文的关键是通过求解二阶绕射速度势获得三维移动物体的二阶倍频波浪力。
The quality of the reconstructed image directly calculated from the recorded hologram is unsatisfactory because of the presence of the zero-order diffraction and the speckle noise.
由于对该全息图直接计算得到的重构像，受零级衍射光斑和散斑噪声的影响较大，使得重构像质量难以令人满意。
Highly visible stationary laser diffraction patterns from liquid surface waves at a few tens Hertz were obtained experimentally, and the disappearance of zero order diffraction spot was also observed.
对于频率为几十赫兹的液体表面波，实验上观察到稳定、清晰、反衬度非常高的衍射图样，并发现了零级缺级现象。
Diffraction efficiency of volume Bragg grating, whose period is in the same order as the incident wavelength, is related to the polarization direction of the incident linear polarized beam.
周期与入射波长同数量级的体积布喇格光栅的衍射效率，与入射线偏振光的偏振方向有关。
In order to get a dual-wavelength tunable CO2 laser, a two-resonator laser is developed, which consists of an output coupler and two diffraction gratings.
为了获得两束波长不同的可调谐CO2激光脉冲，激光器采用双光栅与输出镜构成双谐振腔的结构设计。
In order to get a dual-wavelength tunable CO2 laser, a two-resonator laser is developed, which consists of an output coupler and two diffraction gratings.
为了获得两束波长不同的可调谐CO2激光脉冲，激光器采用双光栅与输出镜构成双谐振腔的结构设计。
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