Magneto-elastic modes in magnetic nano-structures after pulse laser excitation.

Dear all Group members, I have moved to comsol for one of my problems which require multiphyics but I have no idea where to start as I am a novice to this Software. Probem description is below: I wanted to simulate magnon and phonon modes excited by a femtosecond laser in a magnetic material nanostructures (working as a magnonic crystal as well as phononic crystal at a same time). Due to the excitation, some of the magnon and elastic modes get coupled and leading to locked spin wave modes.
Please let me know how can I proceed to simulate such modes and if there is some relevant literature, help me with that too. Thank you in anticipation.