Photons After Dark - Taking Pictures in the Dark
Taking Pictures in the DarkDr. Gregory HowlandAssistant ProfessorSchool of Physics and Astronomy, RITAbstract:Taking pictures and 3D images with extremely dim lighting at or below the single-photon level is of fundamental and practical interest. At the heart of the problem is the following question --- how much information about an image can we extract from a single photon? I will describe a tool box for taking pictures at ultra-low light levels that combines advanced detectors with information-theoretic “smart” measurements that maximize the “information rate” collected from unknown signals. Then, I will survey some interesting experiments---both my own and from other groups---that push the limits of weak-signal imaging.Speaker Bio:Greg Howland is a new assistant professor in the School of Physics and Astronomy at RIT. Previously, he worked as a Postdoctoral Researcher in Prof. Stefan Preble’s Integrated Photonics Group at RIT and was a research physicist at the Air Force Research Laboratory in Rome, NY in the Quantum Information Science group. He received his PhD in Physics from the University of Rochester in 2014. His research interests are in quantum information and quantum optical technologies in bulk optics and photonic integrated circuits.Intended Audience:No background knowledge needed. All are welcome.
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