It’s also a semiconductor and an effective heat pipe. Graphene is optically absorptive, meaning it retains some percent of the energy when photons hit it. The device works partly by way of graphene’s unique properties. In fact, it is more than three orders of magnitude larger than the light pressure used to drive a solar sail, which uses the momentum of photons to exert a small pushing force.” Spooky Action at a Distance “With our new approach, the light pulling force has a much larger amplitude. “In previous studies, the light-pulling force was too small to pull a macroscopical object,” said research team member Lei Wang from China’s Qingdao University of Science and Technology. Not so for this experiment, says the team. However, optical tweezers usually confine themselves to objects the size of single molecules. Optical tweezers and solar sails also use light to move things around. The setup is built on established technology. Graphene’s 3D molecular structure (Credit: iLexx/Getty Images)
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