相对折射率

从理论上分析了硅基二氧化硅光波导器件的芯区尺寸、相对折射率差、内应力和弯曲半径对器件偏振特性的影响，得出结论：小折射率差的正方形波导的双折射系数小；

The influence of core size , relative refractive index difference , stress and bending radius of silicon based silica waveguides on polarization was analyzed . Conclusions were drawn as below : the birefringence of square waveguide with small relative index difference is small .

在分布布喇格反射器（DBR）相对折射率差为0.05到0.2范围内，相位渗透深度变化比较快，且随DBR周期数增大而增大；

The phase penetrating depth varies fast when the difference of relative refractive index in distributed Bragg reflectors ( DBR ) between 0.05 and 0.2 , and it increases with DBR 's period number .

不同负相对折射率材料的FDTD分析

Analysis of different negative refractive index materials by FDTD method

当采样点上的相对折射率不为1时，需要根据Shell定律重新计算光线的前进方向。

The direction of a ray is recalculated according to the Shell ' law when the relative refractive index is not equal to one at sampling points .

结果表明，消光率随x的变化曲线具有波纹结构，当相对折射率m增大时，这一现象变得不明显；

The result shows that the relation curve of the extinction efficiency and the size parameter x has ripple structure , which becomes faint as x is large ;

相对折射率趋近于1的颗粒Mie散射与反常衍射的分析比较

Comparison and analysis of Mie scattering and anomalous diffraction of spheres with refractive index near 1

文中还验证了单模光纤的模场直径、截止波长、相对折射率差对OTDR曲线的影响。

In this article , the influences of the mode field diameter , the cutoff wavelength and the relative refractive index difference on the OTDR curve are also verified .

本文采用SSFL方法进行相对折射率估计，采用4D线性回归法进行法向量估计，试验证明估计的精度得到了保证。

In this thesis , SSFL method and 4D Linear Regression are applied to relative refraction index estimation and normal estimation , respectively . Experiments show that the estimation accuracy is ensured .

本文应用Mie散射理论对微球体颗粒光散射的性质进行了理论分析与数值计算，得出了散射光分布与入射光波长、微球体颗粒半径以及微球体相对折射率之间的关系。

The theoretical analysis and numerical calculations of microsphere particle light scattering characteristics are carrying out by using Mie scattering theory . Moreover , the relations of the distribution of scattering light and incident wavelength , the radius of microparticle and the relative index of the microsphere particle are presented .

Trommer的结果，提出了单模光纤在芯径，相对折射率差偏离标准设计值时色散系数谱的简化计算方法。

Trommer is extended , and simplified calculation for the dispersion coefficient of single-mode fibres is presented on condition that the core diameter and the relative refractive-index difference deviate from the ideal values designed .

相对折射率对于颗粒尺寸测量结果的影响分析

Analysis of effect of refractive index on particle sizing

用基于方位分辨的漫后向散射光确定粒子尺寸分布及相对折射率

Measurement of Particle Size Distribution and Refractive Index Using Azimuth-Resolved Based Diffuse Backscattering Light

相对折射率和法向量估计是折射体绘制的伪像误差主要来源。

Estimation of relative refraction indices and normals is the primary sources of refraction rendering artifacts .

球形粒子相对折射率对散射光场强度最大峰值分布的影响

Effect of spherical particles relative refractive index on the most peak value of scattered light field intensity

研究了消光率曲线波纹结构的近似周期与相对折射率m的关系，并给出了计算机仿真运行结果。

The relationship between the approximate periodicity of the ripple structure and relative refractive index m is also discussed .

结果表明，双层结构内外层相对折射率和相对厚度的变化都将影响光作用力的大小。

Results indicate that the optical force was determined by the relative refractive index and thickness of the two layers .

因此，颗粒尺寸测量仪的测量结果将受到被测颗粒的相对折射率的影响。

Therefore , the measurement results given by the Particle size Analyzer will be influenced by the refractive index of the measured particle .

通过理论计算这种光纤，发现随着包层的空气填充率、包层与空气孔两介质的相对折射率差的增大，带隙宽度也将随之增大。

According to the theory calculation , we find that the photonic bandgap is increasing with the increasing air-filling fraction and the refractive index ratio .

且光谱基波分量及低次谐波分量的贡献依赖于粒子直径、标准偏差及相对折射率的大小。

The contributions of wave component of different orders are dependence on the mean diameter , size distribution and relative refractive index of the particles .

仿真中采用两种不同的理论进行分析，仿真结果表明，当生物细胞（红细胞）与周围介质的相对折射率接近于1时，适合用反常衍射理论进行分析。

The simulation result shows that it is more suitable to analyze biological cells by anomalous diffraction as their compared refractive index close to unity .

给出中央亮条纹强度半最大值全角宽度与工作波长、波导宽度和波导相对折射率关系曲线。

The relationship between the full angular width at half maximum intensity of central bright fringe versus wavelength , width of planar waveguide and relative refractive index of waveguide was presented too .

数值计算结果表明选取合适的飞秒激光脉冲能量、束腰半径、脉冲波长以及微粒与周围媒质的相对折射率，微米尺寸的微粒完全能被飞秒激光稳定捕获。

The numerical results show that micron sized particles can be trapped with femtosecond pulses with suitable single pulse energy , beam waist , pulse wavelength and the relative refraction index of the particle to the medium .

仿真结果表明，当粒子的相对折射率在一定范围内时，利用反常衍射近似反演圆柱形粒子的粒径分布是完全可行的，反演结果稳定、可靠。

Simulation experiments illustrate that it is feasible to use the anomalous diffraction approximation to inverse the circular cylinder particle size distribution in the total light scattering technique , and the inversion results are steady and reliable .

保持空心光纤的其他参数不变，只改变纤芯层与包层之间的相对折射率差，不会引起空心区域内消失波场分布的改变，只会导致光纤包层中场分布的改变。

The difference of the relative refractive index between the core and the cladding results only in a change in the evanescent wave fields in cladding and does not alter the distributions of the evanescent wave field in the hollow region .

并且在给定参数条件下，进行了数值仿真，根据仿真结果，讨论了光束束腰半径、相对折射率、激光波长及功率等光镊系统中的主要参数与光阱品质特性的关系。

According to the simulation results , the relations between the optical trapping force and the main parameters of the system , including focus spot radius , the relative refractive index , the laser wave-length and power and so on , are discussed .

在两量子点共振频率的中间，显示出相对低折射率色散、宽带宽、适宜于光通信的特性。

In the middle of the two quantum dots resonance energy , it shows relatively low refractive index dispersion , large bandwidth and suitable for optical communication .

结果表明，二苯甲酮类紫外吸收基聚硅氧烷的相对密度和折射率随着紫外吸收基团含量的增加而增大，其分子量分布较宽；

The research results show that the relative density and refractive index of the polysiloxane with ultraviolet-absorbent benzophenone group increases with the increase of ultraviolet-absorbent group amount and the molecular weight distributes very wide ;

用一种电容传感器测量空气介电常数而相对测量空气折射率，进而通过计算机多点测量补偿装置提高激光干涉测量的测量精度。

A multi point computer compensation device for improving the accuracy of laser interferometry based on measuring the dielectric coefficient of air using capacitance sensors to get the refractive index of air indirectly is studied .

其中利用苯胺点预测相对密度和折射率的平均相对误差小于0.8%，残炭预测值平均相对误差小于2.8%，表明该关联式具有一定的实用价值。

The average relative error in predicting relative density and refractive index is smaller than 0.8 % , and in carbon residue is lower than 2.8 % , which illustrates that these correlation equations are practical .

以一维光子晶体为例，研究了其带隙相对宽度随其介质折射率比值变化的规律。

The regular pattern of photon band gap variation with the ratio of dielectric refractive index was studied in the condition of the photonic crystal structure fixed .