FEKO works with nano-antennas?

Dear all,
is possible simulate nano-antennas (nm sized) at very high frequency (200-500 THz) with FEKO?

Thank You!

http://www.feko.info/product-detail/numerical_methods

Feko support many solvers and 64 bit solution.

http://www.feko.info/product-detail/...chableText=THz

I think you can simulate nano-antennas.