I’m newbie to FDTD Lumerical. I want to simulate this absolutely simple article: An ultra-compact nanoplasmonic high-pass wavelength filter at telecommunication wavelengths based on a MIM waveguide
The only result to be simulated is “Power Ratio” diagram:
The structure is very simple:
I have simulated the article in FDTD module.:
But after running the simulation, the result has significant difference to the article result:
Now, can anyone please help me and tell me what’s wrong?
I have defined a “Mode Source” with fundamental mode in X-Forward direction.
Used 2-D FDTD simulation with PML Boundary Condition for x-min and x-max and Periodic for y-min and y-max.
I guess my mistake was in choosing the material (Ag Silver Johnson and Christy) which the approximation of FDTD is bad for wavelength 1000(nm) to 2000(nm):
And finally this is my simulation file:
long_pass.fsp (325.3 KB)
Please help me in order to rich the article result.