In general, the refractive index varies based on the frequency of the light as well, thus different colors of light travel at different speeds. High intensities also can change the refractive index.

An Aston University researcher has developed a new technique using light that could revolutionize non-invasive medical ...

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This is called refraction. The frequency of light does not change as it refracts. The refractive index of a material is a measure of the change in the speed of light as it passes from a vacuum (or ...

These materials have changes in their index of refraction and so modify and redirect the propagation of light. Another example is the reflective markers on the pavement of highways that glow at night ...

Researchers have developed a new technique utilising light for non-invasive medical diagnostics and optical communication.

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We can also use wavelengths to calculate refractive index. By substituting \(v_{1}=f\lambda _{1}\) and \(v_{2}=f\lambda _{2}\) into \(n=\frac{v_{1}}{v_{2}}\) then ...