测试晶体的吸收光谱、指数增益系数、衍射效率和有效载流子浓度。
The absorption spectra, exponential gain coefficient, diffraction efficiency and effect carrier concentration of the crystal were measured.
结果表明：除了非线性强度、吸收外，衍射是另一个影响非线性超声束冲击波形成的重要因素。
The results reveal that besides the nonlinearity and absorption, the diffraction is another important factor that affects the shock formation of an ultrasound beam.
固定损耗是由系统自身所用材料、表面处理决定的，包括菲涅耳损耗、球差损耗、衍射损耗、色散损耗、吸收损耗等。
The invariable loss comes from the materials and surface processing of the system itself, such as the loss of Fresnel, ball aberration, diffraction, chromatic aberration and absorb.
当介质的吸收不可忽略时，对于耦合较强的光栅，参考光尺寸的增大反而会引起衍射效率的下降。
However, for strongly-coupled gratings if the absorption of medium cannot be ignored, the diffraction efficiency decreases with widening of reference beam.
使用同步辐射X射线进行材料的散射、衍射和吸收实验要比用一般X射线源的实验能提供新的、更精确、更详细的结构信息。
Diffraction, scattering or absorption experiments on materials using synchrotron X-radiation can provide new and more detailed structural information than using conventional X-ray sources.
再次，通过采用X射线衍射、红外光谱、拉曼光谱、吸收光谱和荧光光谱等方法分析了晶体的结构与性能；
Thirdly, analyzing crystal structure and character by X-ray diffraction, infra-red spectrum, Raman spectrum, absorption spectrum and fluorescence spectrum.
用X光电子能谱、X射线衍射、紫外可见吸收光谱、原子力显微镜等手段对制备的薄膜进行了表征。
Then, the films were characterized with X ray photoelectron spectroscopy(XPS), X ray diffraction(XRD), ultraviolet visible light absorption spectroscopy, and atomic force microscopy(AFM).
这种球体对入射光存在折射、衍射、反射、吸收和杂质对入射光波的衰减作用等影响。
The sphere affects the incident by the refraction, diffraction, reflection, absorption and attenuation of impurity.
利用X射线衍射、紫外-可见光吸收光谱、光致荧光光谱研究了不同组分和结构变化对聚合物形态和光物理性能的影响。
Xray diffraction, UV-Vis absorption and photoluminescence spectroscopy were used to study the effect of the structures on the modalities and optical properties of the copolymers.
对于无吸收的光栅，参考光束相对物光束越宽，衍射效率将越高。
The results show that diffraction efficiency of a lossless grating increases with the higher ratio of reference beam width to object beam width.
另外，晶体的吸收对衍射效率的影响可以忽略。
The influence of absorption of crystal on reading diffraction efficiency is negligible.
基于X射线衍射与吸收理论，提出一种薄膜厚度测量方法即膜下基体衍射法。
Based on the theory of X-ray diffraction and absorption, a method for measuring the thickness of film material according to the diffraction intensity of the matrix below film was established.
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。
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.
文中分别得出了透射线及多次衍射线功率的表达式以及有效线吸收系数。
Separate expressions for the transmitted, and multiply diffracted power are obtained, which enable the effective absorption coefficient to be calculated.
红外、可见紫外吸收光谱及X衍射结果表明，反应前后LB膜仍保持良好的有序性。
The results of the spectra of IR, UV-absorption and X-ray showed the LB film retained perfectly organized after reaction.
为了研究激光二维传播，开发研究了二维激光传播程序HEATER，考虑介质对激光的吸收、衍射和折射效应。
In order to study two-dimensional propagation of laser, we have also studied and used the two-dimensional laser propagation code, the HEATER.
研究了非挥发全息记录中由于紫外光的强吸收而引起的光栅非均匀性，分析了这种非均匀性对光栅衍射效率的影响。
The grating non-uniformity of the nonvolatile volume hologram recording in doubly doped LiNbO_3(LN) crystals mainly caused by strong ultraviolet (UV) absorption is studied in detail.
本文对采自南极普里兹湾及邻近海域沉积物中的高岭石运用X射线衍射、差热分析、红外吸收光谱及电子显微照相等方法进行了鉴定。
Kaolinite from sediments in Prydz Bay and adjacent sea area is identified by X-ray differential thermal analysis, infrared absorption spectrum and electron micrograph.
本文对其物理性质、化学成分、X射线粉晶衍射和红外吸收光谱等方面进行了研究。
Its physical properties, chemical composition and X-ray powder diffraction and infrared absorption spectra have been studied.
衍射-声音虽然会被反射已经吸收，但是他能绕过阻挡物。
Diffraction - not only will a wave of sound reflect or absorb but it can go over the obstacle.
为了获得最优的衍射效率，应当根据介质的吸收率合理地设计光栅的几何尺寸。
It is suggested that for efficiency optimization of a lossy grating the geometrical dimension of the grating should be carefully designed.
为了获得最优的衍射效率，应当根据介质的吸收率合理地设计光栅的几何尺寸。
It is suggested that for efficiency optimization of a lossy grating the geometrical dimension of the grating should be carefully designed.
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