Mar 20 Image OSC Colloquium: Mark Raizen "Zooming in on Brownian Motion with Einstein’s Speed Demon" 3:30 – 5 p.m., March 20, 2025
Mar 06 Image OSC Colloquium: Harald Giessen, "3D Printed Complex Microoptics: Fundamentals and First Benchmark Applications" 3:30 – 5 p.m., March 6, 2025
Feb 27 Image OSC Colloquium: Yeran Bai, "Mid-Infrared Photothermal Microscopy for High-Resolution Biomedical Research" 3:30 – 5 p.m., Feb. 27, 2025
Feb 13 Image OSC Colloquium: Cris Panda, "Quantum metrology and sensing with an atomic spatial superposition state coherent for one minute" 3:30 – 5 p.m., Feb. 13, 2025 Exceptional levels of quantum control and coherence are necessary for performing quantum metrology and sensing with the utmost precision. Atom interferometers are powerful in both probing fundamental physics and everyday sensing, but the use of atoms in free fall has so far limited their measurement times to a few seconds. I will describe how we realize interferometers with atoms suspended in an optical lattice for an unprecedented 70 seconds.
Feb 06 Image OSC Colloquium: Weimin Zhou, "Ideal Observer Computation in the Age of Machine Learning" 3:30 – 5 p.m., Feb. 6, 2025 I will also discuss a method combining generative adversarial networks (GANs) and Markov-chain Monte Carlo (MCMC) that can be readily employed to compute the IO for more complex estimation tasks. Finally, I will demonstrate the use of reinforcement learning to approximate the foveated IO, which generates optimal eye movement strategies for visual search tasks. Together, these machine learning methods represent a set of feasible computational tools for approximating the IO and hold great potential for evaluating emerging imaging technologies and addressing fundamental questions in vision science.
