The laser is the perfect light source: As long as it is provided with energy, it generates light of a specific, well-defined color. Physicists create the opposite, a random anti-laser - an object that perfectly absorbs light of a particular color and dissipates the energy almost completely.

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The laser is the perfect light source: As long as it is provided with energy, it generates light of a specific, well-defined color. Physicists create the opposite, a random anti-laser - an object that perfectly absorbs light of a particular color and dissipates the energy almost completely.