How to Model Two-Photon Absorption

Please login with a confirmed email address before reporting spam

Hi, I am trying to model the two-photon absorption (TPA) process in a nanostructure using COMSOL Multiphysics. For describing light propagation, I am using the Wave Optics Module.

My main question is how many physics interfaces are required to properly model this process .

I would greatly appreciate any guidance on the choice of appropriate physics interfaces and the practical steps needed to implement two-photon absorption in COMSOL.

In addition, if anyone could point me to an example model or a COMSOL application that demonstrates two-photon absorption, or more generally multiphoton absorption, I would be very grateful.


0 Replies Last Post 31.12.2025, 03:02 GMT-5
COMSOL Moderator

Hello yasin mehdi

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.

Reply

Please read the discussion forum rules before posting.

Please log in to post a reply.

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.