1 Risø National Laboratory for Sustainable Energy, Technical University of Denmark2 The Danish Polymer Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark3 Department of Chemical and Biochemical Engineering, Technical University of Denmark4 Department of Photonics Engineering, Technical University of Denmark5 Budapest University of Technology and Economics6 Optilink Hungary Ltd.7 Budapest University of Technology and Economics
We discuss different strategies for optical storage of information in polymeric films. An outline of the existing trends is given. The synthesis and characterization of side-chain azobenzene polyester films for holographic storage of information is described. A compact holographic memory card system based on polarization holography is described. A storage density of greater than 10MB/cm2 has been achieved so far, with a potential increase to 100MB/cm(2) using multiplexing techniques and software correction. Finally the role of surface relief in azobenzene polymers on irradiation with polarized light is mentioned. (C) 2001 Elsevier Science BN. All rights reserved.
Synthetic Metals, 2001, Vol 124, Issue 1, p. 145-150