Using phonon imaging to measure elastic constants in crystals of low symmetry

We attempt to use spatial data from phonon-imaging to identify elastic constants of materials. The current analysis compares continuum limit Monte-Carlo simulations of phonon images to data and attempts to use a minimization process to find the appropriate elastic constants for a material. We are currently working on a proof of concept for Si which has 3 independent elastic constants, but hope to scale up the process to be able to identify the 7 independent elastic constants in CaWO$_4$.