Brillouin micro spectroscopy and morpho mechanics of a hybrid lens

Brillouin spectroscopy, a well established optical technique for the non-destructive, contactless, and label-free readout of mechanical properties, has recently regained prominence in mapping the viscoelastic properties of soft and biological materials. This study presents a preliminary exploration of the mechanical heterogeneities of a hybrid lens, visualized through a 2D cross-sectional map. Additionally, a critical evaluation of the use of two models for analyzing Brillouin spectra in viscoelastic materials, namely the damped harmonic oscillator and the Lorentzian models, is provided.