I am working on hybrid insulator metal insulator(HIMI) plasmonic waveguide at 1550nm wavelength. I have to calculate surface roughness and scttering losses for waveguide. In refrence to that I have some queries:
- How to model it?
2)How to calculate attenuation losses using lumerical?
- In case of surface roughness two parameters are defined such as RMS height and correlation length. Is it defined for particular material or for interface. Let say, we are having interface of silver and silica. Then these parameters are to be defined for every material or interface.
- Mine structure is multilayered where I am having four interfaces, two Ag-SiO2 and two Si-SiO2. Then roughness parameters will be same or different for all four interfaces.
- SiO2 thickness is only 20nm. So will it support roughness parameter in simulation?
Please share some plasmonic surface roughness example, if available.
Thanks and Regards