Scientists have demonstrated how to manipulate light by using time-varying media in the form of specialized nanomaterials.

IT is a pleasure to have the opportunity of acknowledging that the prime importance of refractory materials to our industries is at last receiving recognition. An attempt was made in 1909 (vide ...

Pierre Noé, Stéphane Malhouitre, and Benoît Charbonnier, discuss phase change materials for reconfigurable photonic ...

When light travels at an angle between two different materials, their refractive indices determine the angle of transmission (refraction) of the light beam. In general, the refractive index varies ...

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 air as an approximation ...

Instantly turning a material from opaque to transparent, or from a conductor to an insulator, is no longer the stuff of ...

High-surface-area materials such as porous carbon, polymers and metal–organic frameworks have high hydrogen storage capabilities at cryogenic temperature. The small hydrogen adsorption ...

Negative refraction is based on the equations developed in 1861 by Scottish physicist James Maxwell. All known natural materials have a positive refractive index so that light that crosses from one ...