Spin and Orbital Rotation of Plasmonic Dimer Driven by Circularly Polarized Light

Configuration of a pair of NPs with a supporting substrate, irradiated by a normally incident LH CP Gaussian beam of waist (w0). The central cross sections of these NPs are at the focal plane of the Gaussian beam, and d is the distance between the centers of NPs. The optomechanical responses are the longitudinal orbital rotation and longitudinal/transverse spi