Electrically-switched differential microscopy based on computing liquid-crystal platforms.

ABSTRACT: Detection of transparent phase specimens especially biological cells with desired contrasts is of great importance in visual display and medical diagnosis. Due to the pure-phase nature, conventional detection approaches may damage samples or require complex operations. Computing liquid crystal (LC) is a thin and flat optical element with excellent capability in optical field modulation, which gives a feasible way to this issue from the perspective of analog optical computing. We here propose and experimentally implement an electrically switched two-dimensional (2D) differential microscopy based on computing LC platforms. The Pancharatnam-Berry phase LC polarization grating induces light's spin separation to promote the 2D differential operation. Using the electrically tunable LC plate as t

SUBMITTER: Liu S 

PROVIDER: S-EPMC11502053 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature