https://www.electronicdesign.com/technologies/analog/article/55340751/electronic-design-light-drives-micrometer-sized-motor-and-gear-train
Light Drives Micrometer-Sized Motor and Gear Train | Electronic Design
Motors and gear trains with micrometer dimensions and powered by light are fabricated using semiconductor lithography and processes.
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https://www.optica-opn.org/home/newsroom/2025/november/lasers_charge_and_trap_micrometer-sized_particles/
Optics & Photonics News - Lasers Charge and Trap Micrometer-Sized Particles
micrometer sizedopticsampnews