Figure 1: Diagram and SEM image of fabricated fishnet structure. Here we experimentally demonstrate the first 3D optical NIM by directly measuring the angle of refraction from a prism made of ...

Refraction is the bending of light when it goes from one medium to another so, when a ray of light passes through a prism it deviates.

Everything CCEA students need to know about the reflection and refraction of light for GCSE Physics.

But only Newton saw what this implies: that refraction is then all there is to it. The colors themselves are already in the white light, and all the prism does is to separate them out.