My research interests are computational imaging, optics, optimization and machine learning. I have been working on areas of computational imaging including, phase imaging, phase-space/light field imaging, Fourier ptychography, and defect signal simulation in wafer inspection. These areas apply signal processing and optimization techniques to gain useful capabilities inaccessible to traditional optics platforms. For example, phase imaging from through focus stack provides quantitative phase with simple experimental setup which measures through focus stack. More is shown on the research projects page of the website.