Nanorods coated fiber for generating enhanced radially polarized field

► We propose a device capable of converting an incoming electrical field into a radially polarized beam. The device consists from nanorods disposed over an external surface of tapered optical fiber. The phenomenon is based on surface plasmon resonance. ► Radial polarization can be focused to a significantly smaller spot size in comparison to linearly polarized beam and therefore the beam coming out of the proposed device can be used in various important optical applications such as for resolution enhanced imaging. ► Special integrated all optical device having simplified interface to convert incoming external beam into a radially polarized beam. The simulation results of various structures as well as the fabrication process of the device are reported.