Holography: Principles and Applications

This lecture explores the principles of holography, focusing on the ability to replicate a three-dimensional image of an object by reconstructing the amplitude and phase of the waves. It delves into the challenges of recording phase information and the use of interference to translate phase differences into intensity variations. The lecture also discusses specific cases, such as the interference patterns produced by plane and spherical waves, and the reconstruction of objects using Fourier transforms. Furthermore, it covers applications of holography, including creating custom-shaped beams and generating laser illumination patterns for barcode readers.