Rheology–Raman spectroscopy
Rheology–Raman spectroscopy, is an analytical technique used to simultaneously measure the stress–strain response of fluids, semisolids, and solids, as well as the energy shifts of the sample molecular bonds. RheoRaman is useful for simultaneously measuring chemical structure and mechanical properties, which allows for comparison of molecular changes with rheological behavior in real time.
Source: Wikipedia — Rheology–Raman spectroscopy (CC BY-SA 4.0)