Strongly anisotropic media where the principal components of electric permittivity or magnetic permeability tensors have opposite signs are termed as hyperbolic media. Such media support ...

Maxwell’s electromagnetic theory, formulated 150 years ago, was one of the greatest breakthroughs in the history of physics, and continues to yield new results today. In a recent paper published in ...

Researchers in the US have engineered the first optical material that demonstrates cloaking behaviour in the visible. The team believes that its design validates the basic theory of electromagnetic ...

The speed of light may not be constant, a possibility that could have broad implications for fields of cosmology and even astronomy, say physicists. Skip to main content Open menu Close menu ...