Lens-free 3D imaging based on wavelength scanning

Xuejuan Wu; Jiasong Sun; Linpeng Lu; Yang Chen; Chao Zuo

doi:10.1117/12.2642414

19 December 2022 Lens-free 3D imaging based on wavelength scanning

Xuejuan Wu, Jiasong Sun, Linpeng Lu, Yang Chen, Chao Zuo

Proceedings Volume 12318, Holography, Diffractive Optics, and Applications XII; 123181G (2022) https://doi.org/10.1117/12.2642414
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

We report a novel wide-field lens-free 3D microscopy, which is based on Fourier ptychography diffraction tomography (FPDT) technique. This method uses only one illumination angle to obtain a large enough number of diffractograms by scanning a wide range of wavelengths, applying an iterative method to fill the 3D spectrum, and finally recovering the refractive index (RI) distribution of the sample. And the effectiveness of the method in the 3D RI distribution reconstruction of a tilted phase target is experimentally verified.

Conference Presentation

Citation Download Citation

Xuejuan Wu, Jiasong Sun, Linpeng Lu, Yang Chen, and Chao Zuo "Lens-free 3D imaging based on wavelength scanning", Proc. SPIE 12318, Holography, Diffractive Optics, and Applications XII, 123181G (19 December 2022); https://doi.org/10.1117/12.2642414

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