Light repels light! Confused?? Well don't be. This new phenomenon has been discovered by a team of researchers at Yale University. In this extraordinary phenomenon researchers have shown that when tiny beams of light are confined on a silicon chip, then light photons attract and repel each other just like electromagnetic force. So what light repels lights! What impact will this have on us?? Well this new phenomenon could be used to make silicon photonics devices faster which means that high-speed communications, network cards, even video and TV cables would get more fast and more efficient, thus bringing in a new revolution in silicon technology.
Optical highway: Yale researchers generated repulsive optical forces by splitting a single beam of light so that each half traveled through a different length of waveguide. Because one half of the beam traveled farther than the other,they arrived in the center region out of phase, causing the two waveguides to repel each other. When the light beams were in phase, they attracted each other. The two triangular shapes at the bottom are the optical input and output ports.
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