This CAREER program aims to develop novel optical imaging devices that fully utilize multiple scattering to enable high-resolution imaging in highly scattering media. Scattering in complex media is a fundamental subject that continuously attracts theoretical and experimental endeavors, since it impacts many important applications. To date, solving the inverse-scattering problem remains difficult due to the many degrees of freedom in multiple scattering, and incomplete information limited by the measurement condition. To overcome these limitations, this program will focus on (a) novel physical models and inverse multiple scattering algorithms in both transmission and reflection using intensity-only tomographic measurement; and (b) innovative spatial coherence and multispectral illumination engineering solutions. The anticipated outcomes include: i) new multiple scattering-based theory, algorithms, and devices that can lead to high-resolution 3D imaging of highly scattering objects; ii) theoretical and experimental advancement to 3D phase retrieval in both transmission and reflection tomography; iii) new device design principles for adaptive coherence engineering to harness the multiple scattering information. Broadly, the program will establish fundamentally new understandings of label-free, scatter-based imaging and develop new generation of computational imaging sensors and devices by jointly designing optics and algorithms to break the conventional limits.
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