What does refractive index actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

However, actually making practical metamaterials has proven to be very difficult. In principle, it should be much easier to achieve negative refraction with electron waves in a semiconductor. For ...

Key Concepts Light Refraction Reflection Index of refraction Introduction If you pour water into a clear glass, what color is it? It's clear, right? But what happens if you try to look through it ...

The refractive index of natural materials only covers a limited range. Here, Chang et al. use the principle of space-filling curves to construct a mesoscopic crystal with a refractive index ...