In this riveting episode, Dr. Schwartz takes us on a journey into the intricate world of chemical element mapping—a tool vital for understanding complex materials. Traditional X-ray fluorescence methods, while powerful, are hampered by slow speeds and resolution constraints. Dr. Schwartz introduces a game-changing approach, leveraging computational ghost imaging and compressed sensing to sidestep these challenges. By eliminating the need for focusing and sample movement, his method boosts resolution and slashes measurement time. But that's just the tip of the iceberg! Listen as we explore how this technique can potentially revolutionize medical imaging by enhancing the visibility of soft tissues without upping radiation doses. Moreover, we delve into its potential applications in safeguarding passenger privacy in full-body scanners and pushing the boundaries of imaging resolution down to the nanoscale. Join us for a deep dive into the future of imaging, where speed, precision, and versatility take center stage. https://doi.org/10.1364/OPTICA.441682