Chinese Academy of Sciences acoustics institute and Hefei University of Technology develop thin plate for object manipulation without electronic phase controlMachine translation
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The team encoded phase information in maze-shaped microstructures on a thin plate, generating a vortex wave field with single-channel excitation. The report says experiments manipulated objects from submillimeter particles to centimeter-scale lightweight components: small particles could stay in place or orbit, while larger components rotated continuously. Adjusting the plate structure could also reverse their direction of motion.
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