I’m pretty new to using FDTD and I’m trying to get my simulations to match a paper by Minkov et al. https://www.nature.com/articles/srep05124
I am trying to match their H0 cavity (Design 2). I began working with their parameters at 1550 nm and then scaled up everything for resonance at 2900 nm. I have good agreement in the mode volume BUT my quality factor is only about only half of theirs.
I got a Q=1.15e9 (paper gives 1.9e6) at 1550 nm.
I’m wondering if the meshing, FDTD geometry, etc have an effect on this? I’ve tried playing around but without much change.
Can anyone see what I could be doing wrong that would yield this lower Q factor?
1550 nm file, google drive link: https://drive.google.com/open?id=0B__ZKNontc3mUkhHOFZLNXI0THM
2900 nm file, google drive link: https://drive.google.com/open?id=0B__ZKNontc3mazBaNjJ4OFhkMFk
Many thanks in advance!