Optical coherence elastography of 3D bilayer soft solids using full-field and partial displacement measurements

Characterizing nonhomogeneous elastic property distribution of soft tissues plays a crucial role in disease diagnosis and treatment. In this paper, we will apply the optical coherence elastography to reconstruct shear modulus bilayer solid. computational aspect, adopt well-established inverse technique that solves for every nodal problem domain (NO method). Additionally, also propose novel method assumes moduli merely vary along thickness solid (TO The inversion tests using simulated data demonstrate TO performs better reconstructing distribution. Further, utilize experimental obtained from tomography phantom. We observe quality reconstructed by partial displacement measurement is than full-field measurement. Particularly, component loading direction significantly improves results. This work great significance applying (OCE) characterize layered such as skins corneas.