Hello, I am attempting to use a pre-determined effective index to model a silicon nitride ring resonator for 800 nm light in MODE solutions. I believe I followed the basic ring resonator tutorial available quite closely, but have not yet been able to produce a reasonable transmission spectrum. I set up the source with 750-850 light and have everything aligned, I believe. The one produced by the varFDTD simulation looks like the following:
Can anyone advise me on why this might occur and how to fix it? I have attached the file below for closer inspection if needed.
Thank you so much!!