A quantitative phase imaging device and method based on super lens dispersion zooming

Abstract

The application discloses a kind of quantitative phase imaging device and method based on super-structure lens dispersion zoom, including light source system, super-structure lens and image sensor, light source emits certain wavelength range broadband light, after different filtering, different wavelength narrowband light can be obtained, super-structure lens is focused under different wavelength light illumination and multiple defocus images are formed to transparent or near-transparent sample and are collected by image sensor, and the phase information of the transparent or near-transparent sample is quantitatively recovered by combining light intensity transmission equation;Wherein, super-structure lens focuses and images the transparent or near-transparent sample at the design wavelength;The quantitative phase information of the transparent or near-transparent sample can be obtained without mechanical movement and interference effect, which avoids the alignment error caused by mechanical movement, avoids the huge and complex optical path, and the operation process is more simple, and has great advantage in ultrathin volume.

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