Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...
A rainbow reveals with colors what otherwise remains hidden: light is "refracted" by transparent matter, in this case water droplets. This same physical effect underlies many everyday technologies, ...
Illustration of electron refraction across a potential step. A change in potential causes an abrupt shift in the trajectory of the spin-polarised ballistic electrons, emulating the refraction of light ...
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