A functioning anti-laser has been built, which they call a coherent perfect absorber (CPA). What's that? Well, think zero canceling for light. And if you don't know what that is...
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In the anti-laser, incoming light waves are trapped in a cavity where they bounce back and forth until they are eventually absorbed. Their energy is dissipated as heat. The creators believe that CPAs could one day be used as optical switches, detectors, and other components in the next generation of computers, called optical computers, which will be powered by light in addition to electrons.
If the new Macbook Pro does indeed tout Intel's Lightpeak technology, these new advances are going to be getting serious spotlight in the coming months.
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