Potential of Nano-scale Optical Rotor Based on a pn-Junction Wire

摘要

This paper theoretically investigates how a nano-scale Si pn-junction wire offers the potential to develop rotating motion. Numerical calculation results strongly suggested that a 1-μm-long Si rod should rotate with the acceleration of ~100 m/s^{2 under the green-light illumination of 1 nW/μm2. It is demonstrated that the rotator suits various medical test chips without any internal battery.}