Imagine a whirlpool spinning in a river, or a tornado swirling through the sky. They don't just spin on the spot: they travel forward while maintaining that spiraling motion inside them. These ...
Scientists have created tiny “optical tornadoes” — swirling beams of light that twist like miniature whirlwinds — using a ...
Scientists have developed a novel method that dramatically enhances both the power and number of vortices, opening new ...
For the first time, physicists have observed that 'holes' in light can move faster than the light itself. They're known as ...
A new optical device might allow astronomers to view extrasolar planets directly without the annoying glare of the parent star. It would do this by “nulling” out the light of the parent star by ...
Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase singularities. While they have been widely studied in recent decades, two ...
Scientists have managed for the first time to create a unidirectional device that significantly increases the quality of a special class of transmitted signals in optical communications: optical ...
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