IT is satisfactory to find a British firm of scientific instrument-makers not content with manufacturing instruments but. in addition, providing facilities for the compilation and publication of data ...
The refractive index of a material defines the angle through which light is bent when it travels between a material and the vacuum. Ordinary materials such as glass have refractive indices between one ...
Recent experiments that demonstrate the negative refraction of light could bring a heated scientific debate to a close, and give negative-index materials a positive future Figure 1: Negative-index ...
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