Laser Physics Letters LETTER • OPEN ACCESS 3D Mueller-matrix-based azimuthal invariant tomography of polycrystalline structure within benign and malignant soft-tissue tumours To cite this article: Motahareh Peyvasteh et al 2020 Laser Phys. Lett. 17 115606 View the article online for updates and enhancements. This content was downloaded from IP address 130.231.248.11 on 08/12/2020 at 09:10