For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the need for artificially manufactured metamaterials. Scientists have long ...

Researchers at Harvard create bizarre optical phenomena, defying the laws of reflection and refraction. Cambridge, Mass. - September 1, 2011 - Exploiting a novel technique called phase discontinuity, ...

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 to see the world on the other side of the glass? It looks a ...