The negative impact of Hydrogen in the plasma to the refractive index is proved to be negligible.

并论证等离子体中氢对折射率的负影响可以忽略不计。

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The refractive index of the PDLC is measured and it is coincident with the results by other methods.

用此方法测量了某聚合物分散液晶的折射率，与用其他方法得到的结果相符。

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If the refractive index is larger, the translocation difference of the measurement volume is larger.

管壁材料的折射率越大，测量体的位置与管壁厚趋时位移差也越大。

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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

Inside the BEC, the so-called refractive index (which measures the slowing of light) becomes enormous: as high as 100 trillion times greater than that of glass.

BBC: A Bose-Einstein condensate: It slows down light