Novel biphotonic holographic storage in a side-chain liquid crystalline polyester

P.S. Ramanujam, S. Hvilsted, F. Andruzzi

    Research output: Contribution to journalJournal articleResearch


    We report novel biphotonic holographic storage of text and gratings on unoriented films of a side-chain liquid crystalline polyester capable of high density storage and complete erasure. The holograms have a typical size of 1 mm. The recording utilizes unusual photochemistry involving azo dye molecules. We believe that this technique would have a great potential in the recording of thousands of holograms in a two-dimensional plane, as for instance in text retrieval systems and in the fabrication of high density interconnects in optical neural networks.
    Original languageEnglish
    JournalApplied Physics Letters
    Issue number10
    Pages (from-to)1041-1043
    Publication statusPublished - 1993

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