I am attempting to analyze the absorption and scattering characteristics of an array of gallium nanoparticles on a silicon substrate. In the attached file, I have defined all of the structure and monitor parameters, but when I run the simulation, I receive a diverging field error.
Going through the diverging simulation page at kb.lumerical.com/en/layout_analysis_diverging_simulations.html, I have determined that the error is due to dt stability factor. However, reducing the dt stability factor to nearly 0 does not eliminate the divergence. The material fit is also as expected, and the mesh aspect ratio is 1.
Additionally, changing the nanoparticle material does not eliminate the error, so I am fairly confident that the reason for the divergence is that my simulation is incorrectly set up in some way.
I would appreciate any input on how the simulation region I have defined may be causing this error. Thanks in advance.
Ga_NP_base_1.fsp (330.1 KB)