The condition of negative refraction is analyzed by using the plane-wave method, then the negative refraction at the interface of air and two-dimension photonic crystal is numerically simulated by FDTD.
采用平面波展开法分析三角格子二维光子晶体中负折射现象出现的频率范围,然后用有限时域差分法模拟光在空气和二维三角格子光子晶体界面的折射行为,得到了负折射出现在群速度为负的频段的结论,并且详细比较了光子晶体中不同频率的负折射行为。
Negative refraction can exist in photonic crystals,and the physical significance of negative refraction in one-dimensional photonic crystals is discussed theoretically.
光子晶体中会产生的负折射现象,利用传输矩阵的方法对这一现象进行了详细的研究,得到了一维光子晶体的能带结构、群速度和功率透射谱的解析表达式,在此基础上详细解释了负折射现象的物理意义,并得到了光束在透射面且垂直于传播方向上的横向负位移,从而对光子晶体中的负折射给出了定量的描述。
birefringence =double refraction
双重折射，因镜片结构缺点产生重复折射现象
Light is refracted when passed through a prism.
光线经过 镜时产生折射现象.
Influence of Birefringence on Output Characteristics of LD End-Pumped Nd:YVO_4 Solid-State Laser
LD端泵Nd:YVO_4固体激光器双折射现象研究
Refraction makes an object appear to be in a different position from where it really is.
折射现象会使物体看起来不在原来的位置上。
Numerical Study on Negative Refractions in Metallic Metamaterials;
金属基元的电磁材料中负折射现象的数值研究
The Investigation of Beams Propagation and Amphoteric Refraction in a Uniaxially Anisotropic Crystal;
单轴晶体中的光束传输和正负折射现象研究
Negative Refraction of Surface Plasmon Wave in Metal/Dielectric Structures;
金属/介质结构表面等离激元负折射现象的研究
The Research on Double-Refraction of Electromagnetic Field in Plasm;
电磁场在等离子体中传播双折射现象的研究
Correspondence and Non-correspondence Relations of Words Semantic Meaning in Intercultural Communication;
跨文化交际中词义的对应关系及折射现象
Analysis of Subrefractive Profile in the Marine Atmospheric and its Effect on the Propagation of Electromagnetic Wave
海上大气负折射现象及其对电波传播影响分析
The phenomenon of negative refraction on the interface between meta-material and the air is also observed.
实验还发现了天线的辐射在异向介质与空气的分界面处的负折射现象;
On Abstract Expressionistic Painting and the Reflection of Spirit of the Times;
论抽象表现主义绘画折射的时代精神
Reching the reflection, the refraction and the totol internal reflection by the complex wave vector
应用复波矢研究介质界面的反射、折射和全反射现象并讨论全反射时折射波的奇异特征
The doctor did not find any fracture after taking X-rays.
经x光照射，医生并没有发现任何骨折现象。
Scientists Citation Misbehavior Reflected by the Wrong Citation Records;
错引现象折射出的科学家群体引文失范行为
Reflection of New Language Phenomenon on Chinese Society 1980-2000;
20年来新的语言现象对我国社会的折射
It arises because the refractive index of water( n equals about1.3) is larger than that of air, and rays of light are bent at the interface between the air and the water.
上述现象的原因是水的折射率（大约等于1.3）于空气的折射率，而光在水与空气的界面弯曲了。
It makes the conclusion that the legislation of information opening has been fulfilled, but in practice the system has not worked well.
此外,这一现象也是俄罗斯政治与经济转型期的现实折射。
