Optical efficiency is very small and incorrect results


#1

Dear Lumerical Team,

Kindly, I want to ask about a problem that faced me in Lumerical FDTD.
I tried to work on this paper (attached paper) and the results is incorrect (efficiency is very small), but i cannot find the error.
Can you help me in this, please?
Program files are attached.

Thanks,
Yara

http://www.sciencedirect.com/science/article/pii/S2211285514001487
Si with Au.fsp (272.7 KB)
Si without Au.fsp (272.2 KB)


#2

@yara_elsebaai,

Could you specify in detail what structure and what figures are you going to replicate.
It is extremely time-consuming figuring out the problem by carefully reading the whole article.

From my superficial view, you model a periodic array of silicon rectangles with graphene and nanoparticles on it, which can not be the case considered in the article.