I am trying to benchmark plasmonic heating with dimers by recreating the result of this paper: Nanoscale control of optical heating in complex plasmonic systems (Baffou, Quidant, García De Abajo. ACS Nano, 2010). I extracted this 2 figures
If I run FDTD for the figure 5e then I obtain the same near field and the absorption cross-section is identical to figure 5a for cero degrees. However, if I calculate the absorbed power at the given intensity and run DEVICE (with water modelled via conduction no convection because they also model it via conduction), I obtain this temperature profile:
In my simulation the illumination is from beneath instead of from above but that just changes the orientation. If we look at figure 5a and 4b and 4c we see that the absorption cross-sections at 45 degrees are lower but nevertheless they report and increase in temperature of 80 degrees, which is in the order of my result for the cero degrees.
In summary I am not sure if my simulation is well or not as this paper seems to be ambiguous in their heat simulations. They don’t use lumerical but that should not be the cause of this difference. I would appreciate any help and insight with this paper. I also uploaded my optical and thermal simulation:
Test_Cabs.fsp (312.3 KB)
tre.ldev (6.2 MB)
Thank you very much!