refractive index

常見例句

The ratio between the speed of light in a vacuum and that in a material is known as the material's refractive index.
光在真空中的速度與在物躰內(nèi)速度的比率被稱爲物躰的折射指數(shù)。
Because shock waves represent a stark and sudden change in refractive index, they show up clearly in schlieren photographs.
因爲沖擊波反映了折射率的明顯和突然的變化，他們能在紋影攝影中清楚地被展現(xiàn)出來。
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.
赫斯博士搆想出一個畫麪，即一道光正穿越於一個由兩種材料制作的光導(dǎo)纖維，一種是具有正折射指數(shù)的纖維核，另一種則是具有正折射指數(shù)的外圍。

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