折射率

Theoretically, Terahertz CT could be used to map the complex refractive index distribution in target three\|dimensional space.

理论上 ，该技术可获得被测物在Terahertz波段的折射率和吸收率的三维分布。

In order to lower the Δn value and obtain broad mesophase range, new negative dielectrics anisotropy liquid crystal compounds 4a and 4b were designed by replacement a phenyl ring with a cyclohexyl ring in the common tolane liquid crystals.

为降低液晶分子的双折射率并获得宽液晶相区，用环己基替代传统二苯乙炔液晶分子中的一个苯环，得到一类结构新颖的含乙炔桥键的负介电各向异性液晶分子4a， 4b。

The refractive indices of some fresh animal tissues in vitro were studied at wavelength of 650 nm by total internal reflection.

利用全反射原理测量了新鲜离体动物组织在650 nm处的折射率。

A simplified numeric algorithm expression for solving transcendental equation of optical constants was obtained by analyzing the test principle of ellipsometer. A Microsoft Windows based calculating program for optical constants of thin films with "Solve Block" module of MathCAD by ellipsometer was developed. It can be used to calculate refractive index and thickness of thin films with little absorption or even no absorption as its feature.

通过对椭圆偏振仪测试原理的分析，得到求解薄膜光学常数超越方程的数值算法简化公式，并利用MathCAD的"Solve Block"模块开发了基于Windows系统的椭圆偏振测量薄膜光学常数的计算程序，该程序可用于单层有吸收薄膜或无吸收薄膜折射率和厚度的计算。

A simplified numeric algorithm expression for solving transcendental equation of optical constants was obtained by analyzing the test principle of ellipsometer. A Microsoft Windows based calculating program for optical constants of thin films with "Solve Block" module of MathCAD by ellipsometer was developed.

通过对椭圆偏振仪测试原理的分析，得到求解薄膜光学常数超越方程的数值算法简化公式，并利用MathCAD的"Solve Block"模块开发了基于Windows系统的椭圆偏振测量薄膜光学常数的计算程序，该程序可用于单层有吸收薄膜或无吸收薄膜折射率和厚度的计算。

With given parameters of the fiber grating, the transmission spectrum of the long-period fiber grating was obtained by simulation with Matlab. As a result, the position of the resonant wavelength of the long-period fiber grating is decided by the grating′s period. The attenuation changes with the length and refractive index of the grating.

在设定的光纤光栅参数条件下，通过Matlab进行模拟得到了最终需要的长周期光纤光栅透射谱，并由此得出：长周期光纤光栅谐振波长出现的位置主要由光栅的周期决定，损耗大小可以通过调节光栅长度和折射率来实现。

This effect is due to the usage of high index material and its induced transmittance.

实现低角度效应的主要原理是高折射率材料的使用及其诱导透射的实现。

V-I transter matrix method is proved by the effective index method firstly in this paper.

从有效折射率法出发，验证了用于光纤光栅理论分析的新型方法V-I传输矩阵法的正确性。

Monte Carlo method is used to simulate the process of light transmission and collection in long lead tungstate (PbWO4 or PWO) crystal.

利用蒙特卡洛方法对钨酸铅(PbWO4或PWO)长晶体的光传导与光收集过程进行了模拟计算，着重讨论了晶体吸收长度，折射率等因素对光收集的影响。

The results show that:(1)Parameters of solid particles are the main factors influencing the measurement results.(2) In the study of gas-solid phase flow by PDA, it is necessary to choose the regular and unliable to conglomerate particles with high refracti...

试验过程中，运用几种不同的粒子作为煤粉粒子的模拟粒子进行测量和比较，结果表明：（1）粒子的特性参数是影响测量精度的重要因素之一；（2）测最气固两相湍流流场中粒子的运动特征时，应尽可能选择形状较规则、折射率大、尺寸分布合理、不易粘结且易于收集同时接近所要模拟的粒子性能的固体粒子，必要的时侯应结合粒子性能对测量结果进行修正。

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。