Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
why the scattering cross section calculation result is negative?
Posted 2013年8月7日 GMT-4 18:21 RF & Microwave Engineering Version 4.2a, Version 5.2 1 Reply
Please login with a confirmed email address before reporting spam
I am doing some calculation with comsol 4.2a, and I manage to do the scattering cross section calculation for the sphere model. Then I use exactly the same model, but change the sphere scatter to other nanostructures, for example, composed of several rods. But the calculation results for scattering cross section come to be negative! Is it physical nonsense to me. I don't know what's wrong.
I try to increase the mesh, but it's still negative. What may be the potential reason?
BTW, is anyone can tell what's the definition of Efar in comsol? Since I am not very familar with comsol 4.2 or newer version (I use comsol 3.5a before), how to check the equation system in comsol 4.2a? I mean how to check the definition for each electromagnetic parameters?
Thank you very much!
Hello Xiaowei Li
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.
Please login with a confirmed email address before reporting spam
Maybe you should check the background field of step 2, make sure that correspond to the right electric field (right wavelength) of step 1.
ZYL