Optimal Near Fields in Pyramid-Shaped Nanostructures

Optimal near field distributions in pyramid-shaped nanostructures are obtained through manipulations of electromagnetic radiation using an analytic optimization algorithm based on near field interference and polarization laser pulse shaping. The nanostructure near field responses to changes in polarization, incidence angle, and wavelength are analyzed to optimize the results. Potential nano-optical devices, including the focusing of sub-wavelength images, depending on the dynamic control of the interaction between the radiation and the nanostructures are discussed.