Single-shot deterministic complex amplitude imaging with a single-layer metalens.

ABSTRACT: Conventional imaging systems can only capture light intensity. Meanwhile, the lost phase information may be critical for a variety of applications such as label-free microscopy and optical metrology. Existing phase retrieval techniques typically require a bulky setup, multiframe measurements, or prior information of the target scene. Here, we proposed an extremely compact system for complex amplitude imaging, leveraging the extreme versatility of a single-layer metalens to generate spatially multiplexed and polarization phase-shifted point spread functions. Combining the metalens with a polarization camera, the system can simultaneously record four polarization shearing interference patterns along both in-plane directions, thus allowing the deterministic reconstruction of the complex ampli

SUBMITTER: Li L 

PROVIDER: S-EPMC10776002 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature