Intensity correlation scan (IC-scan) technique to characterize the optical nonlinearities of scattering media.

ABSTRACT: Light scattering, whether caused by desired or spurious elements, is considered one of the main phenomena that present great challenges for the nonlinear (NL) optical characterization of turbid media. The most relevant disturbing factor is the random deformation suffered by the spatial intensity distribution of the laser beam due to multiple scattering. In this work, we report the intensity correlation scan (IC-scan) technique as a new tool to characterize the NL optical response of scattering media, by taking advantage of light scattering to generate speckle patterns sensitive to wavefront changes induced by the self-focusing and self-defocusing effects. Peak-to-valley transmittance curves, with a higher signal-to-noise ratio, are obtained by analyzing the spatial intensity correlation fu

SUBMITTER: Crispim MJB 

PROVIDER: S-EPMC10160117 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature