查询词典 diffraction

It is found from the analytical expression that the truncation parameter, which is defined as the ratio between the waist of the Gaussian beam and the radius of the lens, has an important effect on the diffraction field distribution of the lens.

应用这个表达式研究了截断参数（透镜的半径与高斯光束束腰半径的比值）对透镜衍射场分布的影响。

Finally, we will see that the diffraction limited area in the field of view is proportional to the focal length.

最后我们将看到，衍射极限影响的区域与焦距是成比例的。

Based on Collins integral formula and the expansion of the hard aperture function into a finite sum of complex Gaussian functions,the approximate analytical expression of the diffraction field of Gaussian beam by a circular disc is derived,and its characteristics are analyzed by the numerical calculation and numerical simulation.

基于圆孔光阑函数展开为复高斯函数和的方法，用Colins积分公式，导出了高斯光束照射下圆盘衍射的光场近似解析表达式，经计算机数值计算，对高斯光束照射下圆盘衍射的衍射特性进行了详细的分析

Fire opal that displays play of color but is rare because volcanic opal forms relatively quickly and the spheres of silica rarely have time to settle into the diffraction grids that create play of color.

火蛋白石，但彩色显示器发挥特别之处火山蛋白石形式和较快的领域很少有时间适应硅衍射网，发挥创造色彩。

In addition to an optional 4 Prime Focus Field Flattener, we offer a dedicated f5.75 Flat-Field Telecompressor that is diffraction-limited over the entire 35mm field.

除了可选4的主要焦点场拼合，我们提供了一个专门的f5.75平场Telecompressor即衍射，在整个35毫米领域有限。

The effects of fluorination and side-chain identity on supramolecular and thermal behavior were investigated by wide-angle X-ray diffraction, differential scanning calorimetry, and polarized optical microscopy.

的影响和氟化侧链身份和超热行为进行调查广角X-射线衍射，差示扫描量热仪，偏光显微镜。

The diffraction distributions of Gaussian beam limited by the circular apertures with different sizes in scanning objectives focal plane were studied, and then the effective spot radius in focal plane was calculated using second moment and compared with the ideal one. The influence of apertures with different sizes on resolution was analyzed.

在不同孔径圆孔的限制下，对扫描物镜焦面上的衍射光场分布进行数值计算，并利用二阶矩统计的方法对焦面上的等效光斑半径进行数值计算，将其与不受限时的理想情况进行对比，分析孔径尺度对激光束扫描系统分辨率的影响。

The films were characterized with X-ray diffraction spectrum, Raman scattering spectrum, Atomic Force Microscope and High Resolution Transmission Electron Microscope .

氢化纳米硅薄膜因其中纳米级硅晶粒的量子尺寸效应，具有高电导、发光等优良的光电特性，在微电子、光电子等领域具有广阔的应用前景。

The X-ray diffraction data of single crystals were collected on a Bruker P4 four-cycle diffractometer.

本文中所有对称的和不对称的引发剂分子都是通过Wittig和Heck反应制备。

The intensity of grating diffraction spectrum is obtained by the Fourier series expansion of the transmissivity function. Finally, the design feasibility is analyzed by comparing the minimum signal spectral intensity with the maximal spectral intensity of the background light and the noise intensity.

通过对透射率函数的傅立叶级数展开，得到光栅衍射谱线的强度，对信号光谱线的最小强度、背景光谱线的最大强度和噪声强度的比较，得到设计的可行性。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。