Contact: Lynn Yarris
DOE/Lawrence Berkeley National Laboratory
Caption: Filmed through water, a silica microdisk embedded with a gold, gammadion-shaped light mill nanomotor rotates in one direction under illumination from laser light at 810 nanometers wavelength. When the wavelength is switched to 1,715 nanometers, the rotational direction is reversed. Torque is produced when the laser light frequencies resonate with the frequencie of the metal's plasmons.
Credit: Movie courtesy of Zhang group
Usage Restrictions: credit to Xiang Zhang research group
Related news release: Nano-sized light mill drives micro-sized disk