This project will address modeling of near field optical sources using COMSOL for application in heat assisted magnetic recording (HAMR). This will involve solving the optical fields interaction problem with small metallic structures near conducting surfaces and optimization of the waveguide. The overall project goal is to help move the research project towards structures that can produce smaller, more intense, more efficient optical spots. As an initial calibration of the model, this work will examine Mie scattering from small metallic spheres that can be solved analytically. As time permits, mechanical deformations of the apertures will also be considered.