Recently, a new method of multiplexing holograms by rotating the material, or equivalently, the recording beams was invented. This method is called Peristropic (Greek for rotation) multiplexing and is briefly described. Peristropic multiplexing can be combined with other multiplexing methods to increase the storage density of holographic storage systems such as the previously reported 3-D disk. Peristropic multiplexing was experimentally demonstrating using DuPont's HRF-150 photopolymer film. A total of 395 holograms were multiplexed in the 38-micrometer thick photopolymer disk by combining peristropic multiplexing with angle multiplexing. In addition, it is shown that combining both angle and peristropic multiplexing the storage density of 3-D disks is greatly enhanced.
California Instute of Technology Technical Report
- Pub Date:
- April 1994
- Optical Memory (Data Storage);
- Photographic Film;
- Instrumentation and Photography