Menu

Discussion Forum

New Discussion
Filter

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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.

Floquet boundary conditions in multilayer structure.

Posted Nov 25, 2013, 8:19 a.m. EST RF & Microwave Engineering, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3a, Version 4.3b 2 Replies

Binoy Chacko
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi all,

I am trying to simulate a multi junction solar cell (for eg: Si/SiO2/Al) and trying to study the electromagnetic behavior of it. For periodic conditions I had used floquet boundary conditions,

I think giving the k-vectors for each layer in the structure in the floquet boundary conditions box is necessary, as the refractive index is different for different layers in the structure. Because of this the source and destination wave vectors are different. Am I right?
or
Giving the incident k-vector is correct?


Thanks in advance
Regards
Binoy Chacko
2 Replies Last Post Nov 17, 2016, 5:59 a.m. EST
COMSOL Moderator

Hello Binoy Chacko

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.

Marcos Soldera
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Oct 29, 2014, 12:13 p.m. EDT
Hi. I have the same concern. Have you found the correct solution?
Best.
Hi. I have the same concern. Have you found the correct solution? Best.
Eugene Cheypesh
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 8 years ago Nov 17, 2016, 5:59 a.m. EST
Hi all,

I think if you have homogeneous mediums and the surfaces of your medums are perpendicular to periodic boundaries, there is no need to specify different types of Floquet, because only that component of the k-vector is importnant for Floquet periodicity, which is perpendicular to boundaries. This component is tangential to surfaces with different n and from Maxwell`s equations we know that this component is equal in each medium.


Regards,
Eugene
Hi all, I think if you have homogeneous mediums and the surfaces of your medums are perpendicular to periodic boundaries, there is no need to specify different types of Floquet, because only that component of the k-vector is importnant for Floquet periodicity, which is perpendicular to boundaries. This component is tangential to surfaces with different n and from Maxwell`s equations we know that this component is equal in each medium. Regards, Eugene

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content