Using the characteristic of refractive index are smaller than 1 in the reststrahlen band,we can produce photonic crystal having forbidden band in the middle infrared and far infrared.
由此可知利用材料在剩余射线带内折射率小于1的特性，我们可以制备出中红外区和远红外区存在禁带的光子晶体。
Refractive indices
英语例句库
Incorporating array of metallic wires into the host media, such as ferrimagnet YIG under an external magnetic bias field, is a novel method to synthesize negative refractive index (NRI) material.
摘要以亚铁磁煤质-YIG为基体，在其中嵌入金属导体线阵列是人工合成负折射率微波媒质的一种新方法。
原声例句
经济学人-科技
This substance has a high refractive index, meaning the speed of light passing through it is greatly reduced.
这种物质的折射率很高，意味着光穿过它的速度会大幅降低。
中高级英语短文
" In addition, refractive index can also be used to 'invisibility', for example, objects with high borosilicate glass materials can also be 'invisible' when moving in glycerol with a refractive index close to its own, " Chu noted.
“此外，折射率也可以用来‘隐形’，比如高硼硅玻璃材料的物体在折射率接近自身的甘油中运动时也可以‘隐形’，”褚指出。
中高级英语短文
This is actually one of the principles of realizing the " invisible cloak" , when the fabric of a garment and the air refractive index are the same, people can be freely " invisible" after wearing it, said the expert.
这位专家说，，这其实也是实现 “隐形斗篷”的原理之一，当一件衣服的面料与空气折射率相同时，人穿上后就可以自由 " 隐形" 。
栗子的阅读
The new glass he created was softer and easier to decorate, and had a higher refractive index, adding to its brilliance and beauty, and it proved invaluable to the optical industry.
他创造的新玻璃更柔软， 更容易装饰，折射率更高，增添了它的光彩和美丽，事实证明，它对光学工业来说是无价的。
中文百科
折射率 Refractive index
（重定向自Refractive indices）
某种介质的折射率 n 等于光在真空中的速度 c 跟光在介质中的相速度 v 之比：
比如水的折射率是1.33，表示光在真空中的传播速度是在水中传播速度的1.33倍。
历史上，折射率最早出现在折射定律中， n1sinθ1= n2sinθ2, 其中，θ1与θ2分别是光在介质界面上的入射角和折射角，两种介质的折射率分别是n1与n2。
英语百科
Refractive index 折射率
（重定向自Refractive indices）
0440.jpg)
In optics, the refractive index or index of refraction n of a material is a dimensionless number that describes how light propagates through that medium. It is defined as
where c is the speed of light in vacuum and v is the phase velocity of light in the medium. For example, the refractive index of water is 1.333, meaning that light travels 1.333 times faster in a vacuum than it does in water.
- subbasal的意思
- subbasal band的意思
- subbasal plexus的意思
- subbasal seta的意思
- subbase的意思
- subbase at a point的意思
- subbase course的意思
- subbase course drainage的意思
- subbase course material的意思
- subbase footing的意思
- subbase friction的意思
- subbase layer的意思
- subbase level的意思
- sub basement的意思
- subbasement的意思
- subbasement的意思
- subbase mounted的意思
- subbase mounting的意思
- subbase plough的意思
- subbase的意思
- Subbasin的意思
- subbasins的意思
- subbasis的意思
- subbass的意思
- sub battery system的意思