refractive index

常见例句

The ratio between the speed of light in a vacuum and that in a material is known as the material's refractive index.
光在真空中的速度与在物体内速度的比率被称为物体的折射指数。
Because shock waves represent a stark and sudden change in refractive index, they show up clearly in schlieren photographs.
因为冲击波反映了折射率的明显和突然的变化，他们能在纹影摄影中清楚地被展现出来。
Dr Hess envisages a ray of light travelling down an optical fibre made from two materials: a core with a negative refractive index and an outer sheath with a positive one.
赫斯博士构想出一个画面，即一道光正穿越于一个由两种材料制作的光导纤维，一种是具有正折射指数的纤维核，另一种则是具有正折射指数的外围。

When light travels through glass, it slows down (the amount it slows is measured by a number called the refractive index).
ECONOMIST: A way to detect Earth-sized planets around other stars
From the refractive index of each path it is possible—with the application of some suitably crunchy computing power—to produce a three-dimensional image.
ECONOMIST: Microscopy
Dr Feld also has plans to use beams of different colours, since each colour has a slightly different refractive index in a given material.
ECONOMIST: Microscopy