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One might imagine that light can basically pass through any hole no matter how small, but the truth is that when presented with a hole smaller than its own wavelength, light finds it especially difficult to penetrate to the other side, but it will nonetheless. Researchers Dr. Aurele Adam and Professor Paul Plancken from the Delft University of Technology used for the first time a technique involving far-infrared light, known as Terahertz radiation, to show how this process actually takes place. ... Read »