Calculational studies on controllability of nanosphere propulsion by using femtosecond laser-excited enhanced near field

In this study, we propose a thrust/propulsion of nanospheres by using near field excited by femtosecond laser to control the sphere velocity and propelled angle. We investigated the dependence of parameters which contribute to the sphere velocity and propelled angle on the basis of the optical intensity by the three-dimensional (3D) finite-difference time-domain (FDTD) method.