Fourier ptychographic imaging

Wednesday, August 16, 2017 - 2:00pm - 2:45pm
Lind 305
Guoan Zheng (University of Connecticut)
Fourier ptychography (FP) is a recently developed phase retrieval technique for wide-field, high-resolution imaging. This technique stitches together many variably illuminated, low-resolution measurements in the Fourier space to expand the frequency passband and recover the high-resolution complex sample image. Without involving any mechanical scanning, it facilitates gigapixel imaging in a simple and robust manner. In this talk, I will discuss the principle of the FP approach and its applications in microscopy, quantitative phase imaging, 3D holographic imaging, and macroscopic imaging. I will discuss how to extend the FP approach for other imaging settings. The FP innovation may provide new insights for the development of high-resolution, high-throughput imaging platforms using photon, X-ray and electron.