Transverse anderson localization of light waves through Au nanoparticles in a 3D optical waveguide

Abstract

In this work, a disordered medium, comprised of Rhodamine dye-doped phenol and Au nanoparticles in an optical waveguide, is used to realize transverse Anderson localization of light waves. The optical waveguide facilitates to suppress unwanted optical modes and produce just a single dominant Anderson mode. Through coupling into a particular Anderson localized cavity, the dye molecules' transition rate is determined to be increased to a factor of 7.6. This paves the way for future research to understand and utilize the transverse Anderson localized modes in a 3D random plasmonic medium to manipulate light−matter interaction.