Ultra-miniature lensless diffractive computational imagers


Patrick Gill

(Rambus Labs)

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Date: 9/24/2013


Rambus Labs is developing a new class of computational optical sensors and imagers that do not require traditional focusing. We have recently built our first proof-of-concept lensless imagers that exploit spiral phase anti-symmetric diffraction gratings. These gratings produce diffraction patterns on a photodiode array below, and the diffraction patterns contain information about the faraway scene sufficient to reconstruct the scene without ever having to focus incident light. Image resolution, sensor size, low-light performance and wavelength robustness are all improved over previous diffractive computational imagers.

Further Information:

Patrick R. Gill was a national champion of both mathematics and physics contests in Canada prior to conducting his doctoral work in sensory neuroscience at the University of California at Berkeley (Ph.D. awarded in 2007). He conducted postdoctoral research at Cornell University and the University of Toronto before joining the Computational Sensing and Imaging (CSI) group at Rambus Labs in 2012. He is best known in the optics community for his lead role in inventing the planar Fourier capture array at Cornell University, and he was awarded the Best Early Career Research Paper Award at the 2013 Optical Society of America meeting on Computational Sensing and Imaging.

Created: Wednesday, September 25th, 2013