查询词典 reflectivity

The hemispherical spectral reflectivity of the surface of a strip tangent to an integrating sphere is determined by a high-speed lock-in technique. At the same time, the radiance temperature of the strip is measured by the multi-wavelength high-speed pyrometer from approximately 1000 K to the melting point.

带状试样被亚秒级的脉冲大电流通电加热到溶点，其表面的光谱半球反射比利用高速的数字锁相技术可方便地获得，同时一台多波长高速高温计可测量被测试样从1000K到溶点的光谱温度。

Polygon microcavities have the same light confinement scheme by the totally internal reflectivity as the microdisk, however, the mode characteristics are diverse due to the different symmetry properties.

多边形微腔虽然也是利用腔边界的完全内反射来实现强光学限制，但是由于不同的对称性而具有特殊的模式性质。

The optical properties of the TeO〓 thin films were also studied and it was found the films showed good reflectivity and the absorbance was mainly determined by the dispersed tellurium particles.

结果表明，薄膜具有良好的反射特性；薄膜的吸收则主要由其中的Te决定。

The dependence of the output laser intensity and threshold on the temprerature, the effective optical length of the crystal and the reflectivity of the output coupler are discussed.

讨论了晶体温度，晶体的有效光学长度，以及输出镜的反射率等因素对激光输出强度和发光阈值的影响。

The driver circuit of CCD is realized by CPLD (Complex Programmable Logic Device). In the multi-functions spectroscope's optical system, ring-shape aperture illuminates is used to reduce the sample's undersurface's reflection, then enhance the measurement precision of the reflectivity.

CCD的驱动时序电路通过可编程逻辑器件CPLD来实现，多功能光谱仪的光学系统中采用环形照明技术来减少玻璃样品下表面的反射，从而提高玻璃样品反射率的测量精度。

The results show that the C/W multilayers have smooth surface and well-defined sharp interfaces.No crystallization was found to exist in all constituent amorphous C and W layers.The reflectivity of the multilayer is about 6% at an incident angle of 44.2° and a wavelength of 5.9 nm.

而更短波长的正入射多层膜制作技术尤为困难，反射率很低，例如，在5 nm~10 nm范围内，所获得的多层膜的最高反射率为40%(λ=9·4 nm，θ=13·6°)[3]，在水窗波段2·3 nm~4·4 nm，可做到29%(λ=4·4 nm，θ=26°)，更短的波段1·4 nm~2·4 nm，可以做到0·1%λ=1·4

Chrome plating to be uniform and consistent over all designated surfaces, and ripples, waviness, and variations in reflectivity and appearance are to be minimized.

镀铬在所有指定的表面需要是始终如一的，并且，波纹以及各种反射率和外观的变化必须最小化。

The results showed that the TiN andN films are polycrystalline phase. The properties and structure of TiN films are mainly determined by the N2 mass flow rate, and as the N2 mass flow rate increases, the structure of the TiN films transforms to f.c.c. type leading to better the properties of films. The presence of negative bias voltage can optimize the grain of TiN films, lower the defect proportion and denser the films, which improves the hardness of films. The TiN films conform to the free carrier absorption mechanism and there are many of free electrons with lower N content in TiN films. With the increase of N content, the quantity of free electrons and reflectivity of films decrease, and the plasma frequence shifts to the lower energy, which leads to the regular change of colors of films from silver, yellowy, golden to yellow-red, meanwhile the lightness of films decreases. The goldenN film consists of TiN and ZrN phase, but belongs to a sigle f.c.c. structure with (111) preferred orientation. The Zr-doping dosen't change the position of the valance band, conduction band and forbidden band ofN film, but leads to the presence of new energy levels, which is the reason thatN film remains golden. The transparent hard films with good corrosion resistance and high hardness have been prepared and the further reseachs showed that the grain size of those films is by far smaller than the wave length and the width of forbidden band of those films is very broad, is the reasons that those films are transparent.

研究表明：氮化钛和N 薄膜为多晶态，氮流量决定了氮化钛薄膜的结构和性能，增加氮流量能使氮化钛薄膜的结构向面心立方结构转变，从而得到性能良好的氮化钛薄膜；施加负偏压能优化氮化钛晶粒和减少薄膜中的缺陷，使膜层变得更致密，从而提高薄膜硬度；氮化钛主要遵循自由载流子光吸收，氮含量较少时薄膜中的自由电子数目较多，随着氮含量的增加，薄膜中的自由电子数目不断减少，反射率逐渐降低，等离子体频率向低能端移动，从而使薄膜颜色出现规律变化，由金属色银白色到淡黄、金黄再到红黄，并且薄膜亮度呈下降趋势；金黄色的N 薄膜中存在TiN 和ZrN 的分离相，但其为单一的面心立方结构并具有(111)面择优取向；相对于TiN 薄膜，Zr 掺杂后，并没有使薄膜的导带、价带和禁带发生变化，只是在TiN 禁带内增加了新能级，这也正是掺杂Zr 后，薄膜仍

According to the simulated results, it was found that the incident light was not fully absorbed in the solar cell due to a thinner base layer. The un-absorbed incident light could be further reflected by a AuGe/Au mirror layer and absorbed again by the base layer. Thus the disadvantage of the GaAs thin-film cell with a thinner base layer could be solved by the additional reflection from the AuGe/Au mirror with a high reflectivity within 800~1000 nm wavelength. Moreover, the external quantum efficiency in the long wavelength region and short current density were also increased.

从模拟结果中得知，薄膜型结构之太阳电池可以经由AuGe/Au之金属反射层，再次将未被基极层完全吸收之入射光反射回太阳电池，使得薄膜型结构在长波段的外部量子效率获得提升，这结果显示薄膜型结构太阳电池可利用AuGe/Au之金属反射层在长波段的高反射率，改善使用较薄基极层时，无法将入射光完全吸收的缺点。

The experimental results demonstrated that two beams MPPC is not only the lowest threshold, but also the largest phase conjugative reflectivity comparing to SPPC in KNSBN crystal.

实验结果表明波耦合效应不仅可以降低这种器件入射光强的阈值、扩大入射角的范围以及缩短SPPC响应时间，而且可以获得比其它类型SPPC更大的共轭光反射率。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。