A technique for the efficient computation of the periodic Green´s function in layered dielectric media

Presents a novel technique for the efficient computation of the periodic Green´s function in layered dielectric media. This technique is based on approximating the spectral Green´s function by a set of inverse-transformable complex exponential function. This enables the use of Poisson´s summation formula to express the periodic Green´s function as a combination of a spectral series and a spatial series each of which is rapidly convergent. The proposed technique can be applied to a wide class of problems where periodic structures are to be modeled.<>