Birefringent a fiber optic term. Having a refractive index that differs for light of different polarizations.

一种光纤术语。折射率与不同极化的光折射率不同。

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In natural materials, light waves entering at an Angle always bend to plunge more steeply into the material-the hallmark of a refractive index greater than 1.

在自然物质中，以一定角度进入的光波，进入物质后的角度更小——标志着折射率大于1。

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The tapered waveguide performs mode transformation between optical fiber mode and polymer waveguide mode by using a refractive index taper and a width taper with wedge profile.

提出并设计了一种基于电光聚合物的锥形波导，可用于单模光纤与电光聚合物波导器件之间的连接。

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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

Shining an appropriate light on such a wire from the outside would alter its refractive index (a measure of how fast light travelling inside the wire can move).

ECONOMIST: New-age crystals

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