Anyone dealing with computational studies about surface chemistry, shape and toxicity of nanoparticles (more specifically gold nanoparticles), which software is good for beginner which is quite reasonable.
LuMERICAL FDTD for optical properties and LUMERICAL DEVICE for electrical properties. If you want to apply these nanoparticles in photoelectrocic devices.
Sorry for the belated reply. Yes it takes into account the shape of the nanoparticle and the refractive index of the surrounding medium to compute the optical properties of the nanoparticle.