title: High-resolution 2D plasmonic fan-out realized by subwavelength slit arrays.
abstract: The authors demonstrate a two dimensional (2D) plasmonic fan-out spot array by using subwavelength sized slit arrays. Near field scanning optical microscope (NSOM) is employed to examine intensity distributions of the generated fan-out plasmonic spots, showing good agreement with finite-difference time-domain (FDTD) simulation results. The plasmonic fan-out spots with full width half-maximum (FWHM) of 0.34 lambda(0) are optimized by various design parameters associated with the subwavelength slit as well as polarization states.
authors.affiliation: School of Electrical & Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore.
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Bu
authors.forename: X-C
authors.initials: XC
authors.lastname: Yuan