Physics and technology of optical storage in polymer thin films

P. S. Ramanujam, S. Hvilsted, F. Ujhelyi, P. Koppa, E. Lörincz, G. Erdei, G. Szarvas

Research output: Contribution to journalConference article

50 Citations (Scopus)


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/cm2 using multiplexing techniques and software correction. Finally the role of surface relief in azobenzene polymers on irradiation with polarized light is mentioned.

Original languageEnglish
Pages (from-to)145-150
Number of pages6
JournalSynthetic Metals
Issue number1
Publication statusPublished - Oct 22 2001
EventMolecular Photonics: from Macroscopic to Nanoscopic Applications (EMRS Proceedings Symposium H) - Strasbourg, France
Duration: May 30 2000Jun 2 2000



  • Azobenzene
  • Holographic storage
  • Optical storage
  • Polyesters
  • Polymers
  • Surface relief

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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