Sentence examples for a negative index from inspiring English sources

Light entering a material with a negative index of refraction would take a sharp turn, almost as if it had bounced off the imaginary perpendicular line.

A negative index value means that Americans are more pessimistic, and a positive value means they are more optimistic.

In the Nature paper, the Berkeley researchers created a fishnet structure with 21 layers, alternating between a metal and magnesium fluoride, resulting in a metamaterial with a negative index of refraction for infrared light.

This year, researchers at the Ames Laboratory in Iowa and Karlsruhe University in Germany reported making a metamaterial that had a negative index of refraction for a visible wavelength.

Victor G. Veselago, a Russian physicist, realized in the 1960s that if it were possible to find a material that responded in a contrarian way not just to electric fields and but also magnetic fields, a result would be a negative index of refraction.

The sensor was designed on the basis of a negative index material (NIM) lens.

He notes that the metamaterial for visible light works only for light polarized in a specific direction, and all agree that that metamaterial does not have a key property--a negative index of refraction--although the infrared metamaterial does.

Such can be a waveguide loaded with a negative-index metamaterial or a left-handed transmission line [19].

We present a theoretical study of a new metamaterial with a gradient negative index of refraction which can focus a collimated beam of light coming from a distant object.

In 2009, they applied this technique to demonstrate a chiral negative index of refraction in the 1 THz region [24].

The grating parameters are designed to obtain an appropriate negative index, and the lens profile is tailored to realize the constructive interference.