查询词典 Fresnel diffraction

This is also supported by laser diffraction particle sizing, free solution electrophoresis BET and gas porosimetry, microcalorimetry, a comprehensive range of rheometers, gas liquid chromatography and HPLC.

This颗粒照片相关光谱也是由激光衍射粒度大小，自由的解决方案，电泳下注和天然气支持porosimetry，微量，一个流变仪，气液相色谱和高效液相色谱齐全。

The results demonstrate that X-ray powder diffraction technique and the Rietveld refinement method for measuring the percentage composition of free silicon dioxide in dust and other phases are accurate and have a better precision.

实验结果表明用Rietveld全谱图拟合法来测定粉尘中游离二氧化硅及其它物相的含量准确度较高，重现性较好，是一种较好的定量分析方法。

Diffraction limit ; near field optics ; Super RENS ; super high density optical data storage ; near field photolithography ; namometer photonics transistor ; nonlinear optical device

衍射极限；近场光学；超分辨率近场结构；超高密度光学数据存储；近场光刻；纳米光子学晶体管；非线性光学器件

The InP nanocrystallite was prepared by reflowing and annealing of organic solvent. The 55nm average diameter of InP nanocrystallits was obtained by calculating X-ray diffraction spectrum.

用有机溶剂回流退火法制备出了磷化铟纳米晶，并通过XRD谱计算出平均粒径为55nm。

In this paper, a turbostratic CN precursor was prepared by means of pyrolysis of melamine, then it was treated by high temperature and high pressure. The pyrolysis process of melamine, mechanism of hydrogen elimination and the effect of catalysts on pyrolysis of melamine were studied. The crystal structures, bonding states and chemical compositions of CN precursor obtained by pyrolyzing melamine are analyzed by X ray diffraction, burning spectrum, scanning elecron microscope and Fourier transform infrared Spectroscopy.

本文采用三聚氰胺热解法制备了乱层石墨结构的碳氮前驱物并进行了探索性的高温高压实验；研究了三聚氰胺热解的工艺、去氢机理以及催化剂对三聚氰胺热解过程的影响规律；借助 X 射线衍射、燃烧谱、透射电镜和红外光谱等手段，对获得的碳氮前驱物进行了成分、晶体结构、价键结构的分析。

After removing the plane-parallel cavity, the seed pulse energy is about 8 mJ from the grating cavity and the energy is boosted to 60mJ with additional double pass amplification and extender telescrope. And the line-width of the seed pulse is 0.6 cm-1, near the diffraction limit, and meets the demand of the following amplification.

实验获得了8 mJ的主振荡器激光能量输出，经过双程放大和望远镜扩束后输出激光能量达60 mJ，线宽为0.6 cm-1，光束发散角接近衍射极限，满足了后续放大需要。

Based on the superposition principle of point source interference and small hole diffraction of each individual single mode core of the four-core fiber,the far-field grid pattern are obtained.

基于叠加原理，出射光场可视为每个独立纤芯的多光源相干叠加和圆孔衍射调制共同作用的结果，推导了相应的理论公式，给出了四芯光纤远场干涉的理论与实验相一致的结果。

The crystal structures of the two polymorphs are so similar that they can hardly be distinguished by usual polycrystalline X-ray diffraction methods.

后者是一种亚稳相。这两种多型体的结构非常相似，用通常的多晶衍射方法难以区分。

The structural changes in the fibres during drawing process were examined by wide-angle X-ray diffraction,polarising optical microscopy and density gradient column.

利用广角X-射线衍射试验、偏光显微镜观察等方法研究了拉伸过程中纤维结构的变化。

A two cell SBS phase conjugating mirror pumped by pulsed Nd∶YAG laser was experimentally investigated. After returned to YAG amplifer and coupled out by a polariser, SBS output beam had the characteristics of duration tunability and good quality with near diffraction limited far field divergence angle.

对脉冲Nd：YAG激光器抽运的双池受激布里渊散射相位共轭镜进行了实验研究，将相位共轭镜后向反射光束馈入YAG放大级，经放大级放大，由偏振片耦合输出的激光束具有高质量、脉宽可调的特点，远场发散角接近1倍衍射极限。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。