Holographic Optical Data Storage (HODS) is a revolutionary data storage technology that uses holograms rather than bits to store large volumes of data. It works by using lasers and optical materials to record images as interference patterns in a photosensitive medium. This allows for massive storage capacities - a 1cm3 cube could store the equivalent of thousands of DVDs or hard drives. While researched since the 1960s, HODS is now gaining momentum as a solution to handle growing storage needs. It promises faster access and greater densities than existing magnetic and optical storage, positioning it to potentially replace those methods altogether in the future.

1. The Future in Data Storage Holographic Optical Data Storage

5. Overview of HODS

6. The Practical Setup

11. Storage of one bit of information as a Hologram. a) Superposition of spherical wave from one bit with a coherent plane wave reference beam forming an interference pattern. b) Exposure of a photosensitive medium to the interference pattern. c) Record of the interference grating, stored as changes in the properties of the medium. Storage inside the Photosensitive Medium

13. Recording by Figure

15. Reading by Figure

18. Future Applications

25. Thank you for listening to my presentation! The future is here