Extended depth-of-field(DoF)imaging enhances longitudinal clarity but traditionally fails to record polarization information.Here,we propose a liquid-crystal Pancharatnam-Berry(PB)phase element that extends DoF while ...Extended depth-of-field(DoF)imaging enhances longitudinal clarity but traditionally fails to record polarization information.Here,we propose a liquid-crystal Pancharatnam-Berry(PB)phase element that extends DoF while sensing polarization ellipticity.Leveraging cubic-phase-induced defocus-insensitive point spread functions,a 10 cm DoF is achieved in a 10-cm-focal-length 4f system.Linear PB phases enable spin-orbit interactions to detect polarization states,overcoming irreversible polarization loss in conventional methods.This dual-functionality system integrates DoF extension with polarization sensing,enhancing multidimensional imaging capabilities and holding promise for advancing machine vision,microscopic imaging,and optical detection by merging depth clarity with polarization-based object differentiation.展开更多
基金supported by the National Key Research and Development Program of China(No.2022YFA1404800)the National Natural Science Foundation of China(Nos.12474298,12174309,and 12074313)+2 种基金the Natural Science Basic Research Program of Shaanxi(No.2025-JC-JCQN-063)the Fundamental Research Funds for the Central Universities(No.5000230111)the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University(No.CX2025022)。
文摘Extended depth-of-field(DoF)imaging enhances longitudinal clarity but traditionally fails to record polarization information.Here,we propose a liquid-crystal Pancharatnam-Berry(PB)phase element that extends DoF while sensing polarization ellipticity.Leveraging cubic-phase-induced defocus-insensitive point spread functions,a 10 cm DoF is achieved in a 10-cm-focal-length 4f system.Linear PB phases enable spin-orbit interactions to detect polarization states,overcoming irreversible polarization loss in conventional methods.This dual-functionality system integrates DoF extension with polarization sensing,enhancing multidimensional imaging capabilities and holding promise for advancing machine vision,microscopic imaging,and optical detection by merging depth clarity with polarization-based object differentiation.
