Strained photonic crystal membranes

membrane
fdtd
photoniccrystals
cavity

#1

What is the best way to build the geometry for a strained 1D or 2D photonic crystal? I would like to simulate a thin membrane suspended in air that is bowed in the center relative to its anchor points at the perimeter.


#2

Hi,

We do not have a solver that can simulate shape distortion due to mechanical forces. If you are looking for a representation of the shape caused by gravity, you probably need to look for may be an analytical solution that describes that, or some other method. Once you have a way to describe that, we can continue the conversation how to import it to our solvers (https://kb.lumerical.com/en/index.html?solar_cells_silicon_pillars.html). If you are looking for the change in optical index due to the strain, this applications example might be of your interest (https://kb.lumerical.com/en/index.html?other_application_stress_strain.html).