多维度信息记录与再现技术的进展

With the rapid development of information technology and the arrival of information explosion era, the effective storage and management of massive data puts forward a serious challenge to data storage technology. Optical storage gradually become a mainstream technology for data storage due to its advantages in terms of energy consumption, capacity, cost, longevity, and security. The dimensions of optical storage technologies are focused to introduce several common optical storage technologies in this paper. At present, the storage capacities of two-dimensional surface storage technologies have approached theoretical storage limit(23.5 GB/disc). Three-dimensional storage technologies contain two-photon absorption technology, volume holographic storage technology and so on. Those capacities are improved by 2 to 4 orders of magnitude compared with two-dimensional storage technologies. Five-dimensional storage technology further expands the dimensions of data storage. Predictively, optical storage technologies will achieve big breakthroughs and progresses in the field of large storage capacities, ultra-high access speed, high-performance storage materials, and multi-dimensional storage technologies.