The effective index refractive of every mode is 2.0044, 1.7098, measured by prism coupler method.

利用棱镜耦合法测得了该薄膜中每条模所对应的有效折射率为2.0044和1.7098。

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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.

从每条路径的折射率——再运用一些适当的计算处理能力——就可以组成一个三维图像。

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They then cascaded the negative index medium with a positive refractive index medium so that the complete nanostructure behaved as one with an index of refraction of zero.

他们将负折射率材料和正折射率材料级联起来成功实现了零折射率行为的纳米结构。

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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).

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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

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