A property of a material that changes the speed of light, computed as the ratio of the speed of light in a vacuum to the speed of light through the material. When light travels at an angle between two ...

How will defects in the material improve the capabilities of satellites and help create new flexible microelectronics devices?

A superlattice comprising alternating layers of negative-refractive-index photonic crystals and positive-refractive-index dielectric media has been shown to exhibit an effective refractive index of ...

Light bends when travelling through a concentration gradient of sugar in water. The top layer of liquid is pure water while the bottom layer is concentrated sugar water. In these layers, there is no ...

Physicists in Germany claim to have found the first naturally occurring material that has a negative, rather than a positive, refractive index. The material -- a metallic ferromagnet -- is very ...

Researchers at Harvard University announced recently that they had successfully developed a means of manipulating light at the nanoscale, which could lead to photonic-based (rather than electronic) ...

Biotech Fluidics announces REFRACTiMASTER® - a new HPLC refractive index (RI) detector suitable for detecting compounds with little or no UV activity including simple sugars, complex carbohydrates, ...

Viltrox has announced a new 2x teleconverter for Sony E-mount systems. According to Sony Alpha Rumors, the teleconverter is ...