Ontology highlight
ABSTRACT:
SUBMITTER: Fiore A
PROVIDER: S-EPMC6530466 | biostudies-literature | 2019 Mar
REPOSITORIES: biostudies-literature
Fiore Antonio A Bevilacqua Carlo C Scarcelli Giuliano G
Physical review letters 20190301 10
We developed a microscopy technique that can measure the local refractive index without sampling the optical phase delay of the electromagnetic radiation. To do this, we designed and experimentally demonstrated a setup with two colocalized Brillouin scattering interactions that couple to a common acoustic phonon axis; in this scenario, the ratio of Brillouin frequency shifts depends on the refractive index, but not on any other mechanical and/or optical properties of the sample. Integrating the ...[more]