Polarimetric Compressed Sensing with Hollow, Self-Assembled Diffractive Films.

ABSTRACT: Sensing light's polarization and wavefront direction enables surface curvature assessment, material identification, shadow differentiation, and improved image quality in turbid environments. Traditional polarization cameras utilize multiple sensor measurements per pixel and polarization-filtering optics, which result in reduced image resolution. We propose a nanophotonic pipeline that enables compressive sensing and reduces the sampling requirements with a low-refractive-index, self-assembled optical encoder. These nanostructures scatter light into lattice modes, which encode the wavefront direction and the polarization ellipticity in the linearly polarized components of the diffracted, interference patterns. Combining optical encoders with a neural network, the system predicts pointing an

SUBMITTER: Feng J 

PROVIDER: S-EPMC11803751 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature