%0 Journal Article
%T Subwavelength Transportation of Light with Atomic Resonances
%A Siu-Tat Chui
%A Shengwang Du
%A Gyu-Boong Jo
%J Physics
%D 2015
%I arXiv
%X We propose and investigate a new type of optical waveguide made by an array of atoms without involving conventional Bragg scattering or total internal reflection. A finite chain of atoms collectively coupled through their intrinsic resonance supports a propagating mode with minimal radiative loss when the array spacing $a$ is around 0.6$\lambda_0/2\pi$ where $\lambda_0$ is the wavelength of the nearly resonant optical transition. We find that the transportation is robust with respect to position fluctuation and remains possible when the atoms are placed on a circle. Our result paves the way to implement the subwavelength transportation of light in integrated optical circuits with cold atoms.
%U http://arxiv.org/abs/1506.00793v1