Peering into tissue stiffness with VIPA-based Brillouin spectroscopy
Tuesday, May 17, 2016 - 11:40
in Physics & Chemistry
At a microscopic level, every material contains spontaneous sound waves—acoustic phonons—that have properties dependent on the material's mechanical properties. When light interacts with these acoustic phonons, it scatters and acquires a frequency shift related to the material's elastic modulus, a characteristic measure of its ability to resist deformation and stress.