High-density storage in holographic 3D disks

We have achieved a surface density of 10 bits/µm^2 (6.5 Gbits/in^2) with an experimental holographic storage setup, using DuPont's 100 µm thick photopolymer as the recording medium. Its performance characteristics in terms of access rate and signal-to- noise-ratio are described. Furthermore, a simple holographic 3D disk system with high surface density (10 bits/µm^ using a 100 µm thick recording material) and an architecture similar to compact disks is shown