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

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 molecu...

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Bibliographic Details
Published in:Applied physics letters 1993-03, Vol.62 (10), p.1041-1043
Main Authors: RAMANUJAM, P. S, HVILSTED, S, ANDRUZZI, F
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Imaging devices
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
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Summary: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.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.108788