In this podcast episode, we dive into the fascinating science of holography and how it enables the recording and reconstruction of three-dimensional images from two-dimensional film. We start by illustrating the captivating illusions created by holograms, then explore the intricate process of hologram recording through laser interference patterns. At its core, holography involves capturing the phase and amplitude of light waves, allowing us to recreate the entire light field of the original scene. This results in a convincing sense of depth that can be viewed from various angles. To make it accessible, the episode blends straightforward examples, like a single point, with a more detailed mathematical breakdown using complex numbers. Lastly, we discuss the rich history and wide-ranging applications of holography, showcasing its importance far beyond just artistic displays.
