Dear everyone , I am new to comsol and need your help! I would like to ask a question regarding one of the problem i am facing in the simulation of my current project. I want to see coupling of em wave between two silicone waveguides. There are two silicone waveguide of cross section 640[nm] × 480[nm] and of length 10 [um] . Both are placed horizontally 100[nm] apart such that the total length from one end to other end is 20.1 [um] . The light source is of 1550 [nm] wavelength. I would like to know what boundary condition should i set for the waveguide and also should i add a block of air in that 100 [nm] space or not. Please let me know. Thanks in advance.
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