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Concept of the laser can be reversed
- March 07, 2019
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Scientists have found a way to build the 'opposite' of a laser -- a device that absorbs a specific light wave perfectly. This can be done even in complicated systems, in which waves are scattered randomly, and has many technological applications.
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"Concept of the laser can be reversed", MachPrinciple, March 07, 2019, https://machprinciple.com/post/Concept-of-the-laser-can-be-reversed
