查询词典 refractive

The design was optimized for maximum signal intensity by simulation and experiments. The size of focal spot in the micro-channel capillary was optimized. Fluorescence signal was enhanced 2～3 times when increasing the diameter of focal spot from 10μm to 50μm (full of the inner wall of capillary), through which the sensitivity and signal-noise ratio were also improved. A technique of using refractive matching liquid was presented. The fluorescence signals were boosted up and the signal collection efficiency was also meliorated when using this method.

通过理论分析和实验优化本系统的设计：优化聚焦于微通道中的激发光斑大小，增大聚焦到毛细管内径中的激发光斑尺寸，使光斑尺寸由最小的10μm增大到50μm，光电倍增管接收到的荧光信号提高了2-3倍，从而提高系统的信噪比和灵敏度；提出在聚焦物镜处加折射率匹配液的方法，加匹配液后的荧光信号得到了增强，因而提高了荧光收集效率和灵敏度。

In the morning, leaves with dew and refractive sunshine are the most jealous scene for the climbers

白云山景，胸襟如海清晨，带露的叶子，折射的光，是乐山者最羡慕的风景

The invention discloses an optical-fiber all-optical code converter, comprising a temperature control circuit as well as optical-fiber Mach-Zed interferometer, heat sink, semiconductor refrigerator, thermosensitive resistor and radiator, where the interferometer is composed of two cascaded 3dB couplers on the heat sink, the relation between length difference delta L of two arms of the interferometer and generated delay time difference delta T is that delta L=c.delta T/n, where c is light velocity in vacuum and n is refractive index of optical fiber; the thermosensitive resistor is used to detect temperature of interferometer, the temperature control circuit is used to compare feedback voltage of the thermosenstive resistor with a given voltage to regulate working current of the semiconductor refrigerator, and the semiconductor refrigerator refrigerates or heat two arms of the interferometer by the heat sink.

本发明公开了一种光纤型全光码型转换器，它包括温控电路和位于密封盒内的光纤型马赫-泽德干涉仪、导热热沉、半导体制冷器、热敏电阻以及散热片；干涉仪由位于导热热沉上的二个3dB耦合器级联而成，两臂的长度差ΔL与产生的延时差ΔT之间的关系为ΔL＝c。ΔT/n，c为真空中光速，n为光纤折射率；热敏电阻用于对干涉仪的温度进行探测，温控电路用于比较热敏电阻反馈的探测电压和设定电压，对半导体制冷器的工作电流进行调节，半导体制冷器通过导热热沉对干涉仪两臂同时进行制冷或加热。

With higher encircling scleral buckle,the refractive change after buckling surgery may be caused primarily by the shallowing of anterior chamber and thickening of lens.

在较高眼内环扎嵴时，术眼术后早期晶状体增厚和前房变浅是眼屈光度负值增加的主要因素，其原因与术后虹膜晶状体隔移位等有关。

Besides, annealing also smoothes the film surface and enhances the density and refractive index of the films.

退火处理使薄膜的表面粗糙度降低、致密度增加、折射率增大。

At the same time, a detector was used to measured the refractive light intensity under coupling state and uncoupling state.

这两种测试光波导传输损耗的方法具有实验仪器价格低廉，操作简单，测量准确等优点。

This mainly displayed in the temperature change caused the back lining material which constituted hydrophone head expansion or contraction, and changed the optical fiber refractive index.

这主要表现在温度变化引起水听器探头背衬材料的胀缩和光纤折射率的变化。

To match the boundary conditions, the modified Bessel functions are expanded to the planar wave in the interface. Then the eigenvalue equations of different polarizations are obtained by scalar approximation. At last, the relations between propagation losses and the states of polarizations, the geometric structures of the fiber, the refractive index and thickness of the polymer are calculated.

论文首先给出其等效折射率数学模型，在纤芯和包层中，光场用贝塞尔函数及虚宗量贝塞尔函数的求和表示，在聚合物和金属中用指数函数的求和表示，交界面上采用将虚宗量贝塞尔函数用平面波展开的方法匹配边界条件，然后利用标量近似求出极化D型光纤不同偏振态光场模式的本征值方程，最后通过数值计算得到光纤的传输损耗与抛磨平面和纤芯之间的距离，聚合物粘接材料的折射率和厚度，以及偏振态之间的关系。

Cerium dioxide has high refractive index and dielectric constant and ultraviolet absorption which may be useful for various optical and electronic applications.

二氧化铈具有高折射率、介电常数和紫外吸收率，因此它广泛地应用于各种光学和电子器件。

Optical clearing is a technique to increase the light penetration depth in the tissue by the application of clearing agent to reduce light scattering and match the refractive index between the scatterer and the environment.

光透明技术是一种在生物组织中通过施加光透明剂来抑制光散射，改善散射体和环境的折射率匹配，从而增加光在生物组织中的穿透深度的技术。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。