Ansys Learning Forum Forums Discuss Simulation Photonics Stackrt method for absorption validation Reply To: Stackrt method for absorption validation

Dimitris Polyzos
Ansys Employee

Hello Mariah, 

The stackrt is recommended for multilayered structure. That being said, it will calcualte absorption and transmission for structures where are infinite in lateral y and y irentations. The same results will be returned for FDTD if your structure will have the same periodic structure. Please refer to this link for FDTD/STACK comparison: STACK-FDTD.

In your design it is better to use FDTD solver as you want to calculate transmission and absorption of a complex structure (stepped). I wouldn't say that the results returned from stackrt are not good, more likely different I reckon.

Thanks a lot in advance

Regards

Dimitris

 

 

 

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