折射率

The Fermat"s principle, Fresnel"s coefficients, Goos-Hanchen effect and Brewster angle at an interface between a PIM and a NIM were studied respectively. When the NIMs are introduced, the two traditional descriptions of Fermats principle are not consistent with each other and the least time principle do not hold true anymore.

随着负折射率介质的引入通过对费马原理的两种传统描述形式的研究可以发现，正—负折射率介质平界面处的最短时间原理已不成立，并进一步验证了使用光程表达的费马原理才是严格的正确的理论。

For the same reason, the Goos-Hanchen shift is negative for both the TE and TM polarization incident waves as the result of the negative pennittivity and negative permeability nature of NIMs served as the rarer medium when total reflection occurring at a PIM-NIM interface.

对于正—负折射率介质界面处发生全反射时的古斯—汉森位移的研究发现当下半空间的光疏介质为介电常数和磁导率均为负的负折射率介质，不管是对于TE波还是TM入射波，在界面发生全反射时古斯—汉森位移均是负的。

The main properties of one-dimensional photonic band gap structures that include layers of negative refraction material are analyzed from the explicit dispersion equation. The results show that the photonic crystals containing negative refraction materials have wider photonic band gaps which is different from the case of traditional photonic crystals with narrow transmission bands when the two layers have the same optical thickness.

从色散关系出发，通过数值模拟计算研究了由正折射率材料和负折射率材料交替组成的一维光子晶体的能带结构与光子晶体的结构参数之间的关系。

Based on the result of normalized frequency with effective refraction index -1 versus inner radius of ring-shaped holes we theoretically analysis the effects of structure parameters to equifrequency contours of respective normalized frequency and imaging properties.

通过光子晶体有效折射率的计算，得到了有效折射率为-1 的电磁波频率随空气环内径由0～0.2a 变化的规律，并由对应等频曲线的变化解释了结构参数对光子晶体平板成像的影响。

The EIM was introduced at first. By solving the scalar wave equation within cladding of TIR-PCF, the fundamental space-filling mode and the effective index of the cladding were calculated. The logical effective radius was selected, and the propagation properties of TIR-PCF were discussed with the classical theory of step-index fiber.

深入研究了有效折射率模型的构造，通过求解标量波动方程得到了光子晶体光纤包层基空间填充模，得出光子晶体光纤的包层有效折射率；选择了较合理的有效半径，利用经典的阶跃光纤理论来研究光子晶体光纤的传输特性。

Copy the glass material and change 'Index of Refl.' to 1.3 which is the refractive index of water.

拷贝一个玻璃材质然后改变折射率为1.3 ，这是水的折射率。

The effects of dopant concentration, the molecular volume and the temperature of polymerization on the refractive index profile of the preform rods were investigated in detail.

观察到聚合温度对折射率分布的影响以及掺杂剂分子的分子体积在极端情况下(如溴苯与MMA分子的分子体积相似，联苯分子体积比MMA则要大的多)对折射率分布的影响，清楚地显示出分子体积在界面-凝胶聚合过程中所起的重要作用。

The comparasion of the theoretical counting result and experimental values is proved the correctness of this inference and relative counting method. This plays a guiding role in the study of medium refraction index, and material making in a particular field which has a special ...

通过理论计算和实验数值的对比表明，所推导出的结论及相关的计算方式是正确的，对介质折射率的研究和在特殊领域对折射率有一定要求的材料的制备具有一定的指导意义。

In Chapter 3, a comprehensive analysis of the coupling coefficients between plane waves in conventional dielectric media and Bloch waves in photonic crystals with effective negative refractions is performed by the layer-KKR method.

第三章，我们运用layer-KKR方法计算得到平面波与半无限负折射光子晶体中Bloch波的耦合效率，从而可以将介质-等效负折射率光子晶体的透射率与介质-负折射率介质的透射率进行系统的比较。

A novel method to realize a highly nonlinear photonic crystal fiber is reported. In this method, the core of the hollow core-PCF is filled with highly nonlinear liquids, such as carbon disulfide, chloroform and methylbenzene.

提出了一种实现高非线性光子晶体光纤的新方法，即在空芯光子晶体光纤的纤芯空气孔中填充高折射率、高非线性折射率的液态物质三氯甲烷、甲苯、二硫化碳等。

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。