Theory of evanescent plasmon-mode optical lattices with metallic layer

How a surface plasmon optical lattice can be produced when an ordinary Hermite-Gaussian light is totally reflected internally at the planar surface of a dielectric on which the finite thickness of metallic layer has been deposited, has been studied in the present paper. The characteristic property of such a light is the exponential decay with distance in a vacuum which can basically provide a two-dimensional optical lattice with attractive enhancements with the strongly trapped intensity distribution decays with distance vertical to the metallic surface. The detailed characteristics of this lattice structure depend on the input light parameters and the dielectric mismatch of the media. As well as this, they can be controlled by varying the incident angle and the order of the Hermite-Gaussian light. (author)