For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the ...

A material coating, whose light refraction properties can be precisely ... Their findings have now been published in the journal ACS Nano. "Both metasurfaces and light-switchable polymers have ...

Cornell scientists have developed a novel technique to transform symmetrical semiconductor particles into intricately twisted, spiral structures—or "chiral" materials—producing films with ...

When a wave or light ray moves from one medium to another its speed changes. The direction of the ray may also change. This property of waves is called refraction and commonly occurs with light rays.

The change in direction of a beam of light as it travels from one material to another is called refraction. The normal is a construction line drawn at right angles to the surface of the glass block.