Polarization-Sensitive Super-Resolution Phononic Reconstruction of Nanostructures.

ABSTRACT: In this paper, we show for the first time the polarization-sensitive super-resolution phononic reconstruction of multiple nanostructures in a liquid environment by overcoming the diffraction limit of the optical system (1 μm). By using time-resolved pump-probe spectroscopy, we measure the acoustic signature of nanospheres and nanorods at different polarizations. This enables the size, position, and orientation characterization of multiple nanoparticles in a single point spread function with the precision of 5 nm, 3 nm, and 1.4°, respectively. Unlike electron microscopy where a high vacuum environment is needed for imaging, this technique performs measurements in liquids at ambient pressure, ideal to study the insights of living specimens. This is a potential path toward super-resolution ph

SUBMITTER: Fuentes-Dominguez R 

PROVIDER: S-EPMC9204812 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature