News tagged with evanescent waves

A new twist in the properties of light

Light has some well-established dynamical properties that have defined our understanding of electromagnetic radiation for over a century. Two of the most fundamental of these properties are that photons of light carry momentum ...

dateApr 25, 2014 in Optics & Photonics
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Metal surface can repel electric charges

(—Metals are known for being good electrical conductors. Due to this property, a stationary electric point charge placed outside a metal will cause the electrons in the metal to redistribute in such a way that ...

dateJan 08, 2013 in General Physics feature
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