Speckle quantitative phase imaging camera based on the transport of intensity equation

Linpeng Lu; Jiasong Sun; Jialin Zhang; Yao Fan; Qian Chen; Chao Zuo

doi:10.1117/12.2547879

16 October 2019 Speckle quantitative phase imaging camera based on the transport of intensity equation

Linpeng Lu, Jiasong Sun, Jialin Zhang, Yao Fan, Qian Chen, Chao Zuo

Proceedings Volume 11205, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019); 1120521 (2019) https://doi.org/10.1117/12.2547879
Event: Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), 2019, Phuket, Thailand

Abstract

We present a new quantitative phase imaging method on the basis of the novel camera named quantitative phase imaging camera with a weak diffuser (QPICWD). It measures object under low-coherence quasi-monochromatic illumination via examining the deformation of the speckle intensity pattern. The speckle deformation can be analyzed by means of ensemble average of geometric flow method, realizing high resolution distortion field by using the transport of intensity equation (TIE). There are some applications for the proposed new design including nondestructive optical testing of microlens array with nanometric thickness. Since the proposed QPICWD needs no modification of the common bright-field microscope, it may promote QPI as a useful tool for subcellular level biological analysis.

Citation Download Citation

Linpeng Lu, Jiasong Sun, Jialin Zhang, Yao Fan, Qian Chen, and Chao Zuo "Speckle quantitative phase imaging camera based on the transport of intensity equation", Proc. SPIE 11205, Seventh International Conference on Optical and Photonic Engineering (icOPEN 2019), 1120521 (16 October 2019); https://doi.org/10.1117/12.2547879

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