Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory

Nanosized Light Mill Motor

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