Conjugated Polymeric Composites for Holographic Storage
Autor: | Yair Avny, Galina Perepelitsa, Iris Benjamin, Shoshy Shalom, Ronny Neumann, Ofer Levi, Aharon J. Agranat, D. Davidov |
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Rok vydání: | 1999 |
Předmět: |
chemistry.chemical_classification
Diffraction Fabrication Materials science Mechanical Engineering Metals and Alloys Infrared spectroscopy Polymer Condensed Matter Physics Electronic Optical and Magnetic Materials Photochromism chemistry Mechanics of Materials Phase (matter) Materials Chemistry Composite material Fourier transform infrared spectroscopy Absorption (electromagnetic radiation) |
Zdroj: | Synthetic Metals. 102:1178-1181 |
ISSN: | 0379-6779 |
DOI: | 10.1016/s0379-6779(98)00310-5 |
Popis: | We report here on the fabrication and optimization of composites of conjugated polymer in Sol-Gel and PVA matrices. FTIR spectroscopy as well as other observations show that efficient phase and absorption holograms can be created in the material upon illumination, via the photochromic effect. The main contribution to the absorption change is chain scission and photo-oxidation mechanism. Optimized holographic composites with diffraction efficiencies as high as 26% are shown. Beam interaction between the writing beams is observed for these composites, while the diffraction efficiencies was improved by an order of magnitude. |
Databáze: | OpenAIRE |
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