Photoemissive Detectors: Applications and Technologies

This lecture discusses various applications of photoemissive detectors, focusing on intensified cameras, including intensified CCD and CMOS technologies. The instructor explains the operating principles of gated intensified CCDs, highlighting their low readout noise and high-speed capabilities. The lecture covers the mechanics of microchannel plates and their role in amplifying signals. The discussion transitions to vintage streak cameras, detailing their design and function, including the use of rotating mirrors and cathodic tubes. The instructor emphasizes the importance of time resolution in capturing fast phenomena, demonstrating how these cameras can analyze light propagation and capture images at extremely high frame rates. The lecture concludes with examples of femto-photography, illustrating the practical applications of these technologies in measuring the speed of light and visualizing rapid events. Overall, the lecture provides a comprehensive overview of the principles and advancements in photoemissive detection technologies.