Pixel-super-resolved lensless on-chip microscopy using a color image sensor

Xuejuan Wu; Yang Chen; Chao Zuo

doi:10.1117/12.3035920

22 November 2024 Pixel-super-resolved lensless on-chip microscopy using a color image sensor

Xuejuan Wu, Yang Chen, Chao Zuo

Author Affiliations +

Proceedings Volume 13240, Holography, Diffractive Optics, and Applications XIV; 1324016 (2024) https://doi.org/10.1117/12.3035920
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

We report a wavelength-scanning-based lensless on-chip microscope using a color CMOS sensor and a matching modified phase retrieval algorithm for pixel super-resolution. Without physically removing the Bayer color filter array positioned on the sensor chip, we demonstrate quantitative phase imaging with a lateral resolution of 615 nm over a wide field-of-view of 51.88 mm² by exploiting the green-channel data from a set of low-resolution holograms captured at various wavelengths. The resulting spatial bandwidth product is 274.3 Megapixels, over 20 times higher than a conventional optical microscope.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xuejuan Wu, Yang Chen, and Chao Zuo "Pixel-super-resolved lensless on-chip microscopy using a color image sensor", Proc. SPIE 13240, Holography, Diffractive Optics, and Applications XIV, 1324016 (22 November 2024); https://doi.org/10.1117/12.3035920

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