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Proceedings Paper

A portable quantitative phase microscope (Conference Presentation)
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Paper Abstract

High performance commercial 3D scanners and profilometers are complex and expensive for individual users. On the other hand, there are many onsite applications that require handheld portable devices to reliably measure 3D structures with high accuracy and sensitivity, such as inspecting flat mechanical surfaces and testing water quality. Here, we present a portable quantitative phase microscopy (QPM) system to tackle such onsite applications and laboratory needs. Our portable QPM system integrates digital holography, optical microscopy, and smartphone technologies into one single platform to allow for a broader user accessibility. Unlike the current prevailing smartphone imaging techniques, our method does not require heavy computations and complicated algorithms. Our image retrieval algorithm, particularly phase retrieval based on digital holographic measurements, is simply that allows for achieving real-time imaging on mobile devices. Our system is an effort on miniaturizing a compact QPM system and reducing their cost. With this portable system, we are currently exploring various applications ranging from characterizing microfluidic devices to imaging microscopic structures in water. We envision our QPM unit will be widely available to individual users for more exciting applications in the near future.

Paper Details

Date Published: 15 March 2018
Proc. SPIE 10503, Quantitative Phase Imaging IV, 105030D (15 March 2018); doi: 10.1117/12.2289147
Show Author Affiliations
Renjie Zhou, The Chinese Univ. of Hong Kong (Hong Kong, China)
Massachusetts Institute of Technology (United States)
Di Jin, Massachusetts Institute of Technology (United States)
Zahid Yaqoob, Massachusetts Institute of Technology (United States)
Peter So, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 10503:
Quantitative Phase Imaging IV
Gabriel Popescu; YongKeun Park, Editor(s)

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