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Nanoscale Patterning of Light Manipulates Macroscale Objects

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PASADENA, Calif., March 21, 2019 — By creating a distinct nanoscale patterning on the surface of an object, researchers at the California Institute of Technology (Caltech) have designed a way to levitate and propel objects using only light. The patterning interacts with light in such a way that the object can right itself when perturbed, creating a restoring torque to keep it in the light beam. Rather than requiring highly focused laser beams, the researchers designed the patterning of the object as a way to “encode” stability into the object. Self-stabilizing optical manipulation of objects — which can...Read full article

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