During last month I got another trial version of Lumerical FDTD Solution software.
Main objective was to investigate scattering and absorption cross sections of silver nanoparticles as well as near field distribution. 2 D simulations gave right results for small particles. But for bigger particles >100nm results was not simmilar to those from literature.

The sotware tool which allows to view the near field distribution around the nanoparticles was succesfully used. For the future this option ca ce used for plasmmonic resonaces determination.