Fabrication and Characterization of Dye Sensitized Polymer Films for Holographic Applications

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Fabrication and Characterization of Dye Sensitized Polymer Films for Holographic Applications

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dc.contributor.author Beena,Mary John
dc.contributor.author Sudha Kartha,C
dc.date.accessioned 2008-08-19T05:59:47Z
dc.date.available 2008-08-19T05:59:47Z
dc.date.issued 2008-01
dc.identifier.uri http://dyuthi.cusat.ac.in/purl/668
dc.description.abstract Holographic technology is at the dawn of quick evolution in various new areas including holographic data storage, holographic optical elements, artificial intelligence, optical interconnects, optical correlators, commerce, medical practice, holographic weapon sight, night vision goggles and games etc. One of the major obstacles for the success of holographic technology to a large extent is the lack of suitable recording medium. Compared with other holographic materials such as dichromated gelatin and silver halide emulsions, photopolymers have the great advantage of recording and reading holograms in real time and the spectral sensitivity could be easily shifted to the type of recording laser used by simply changing the sensitizing dye. Also these materials possess characteristics such as good light sensitivity, real time image development, large dynamic range, good optical properties, format flexibility, and low cost. This thesis describes the attempts made to fabricate highly economic photopolymer films for various holographic applications. In the present work, Poly (vinyl alcohol) (PVA) and poly (vinyl chloride) (PVC) are selected as the host polymer matrices and methylene blue (MB) is used as the photosensitizing dye. The films were fabricated using gravity settling method. No chemical treatment or pre/post exposures were applied to the films. As the outcome of the work, photopolymer films with more than 70% efficiency, a permanent recording material which required no fixing process, a reusable recording material etc. were fabricated. en_US
dc.language.iso en en_US
dc.publisher Department of Physics en_US
dc.subject Poly (vinyl alcohol) (PVA) en_US
dc.subject Poly (vinyl chloride)(PVC) en_US
dc.subject Polymer matrices en_US
dc.subject Methylene blue (MB) en_US
dc.subject Holographic applications en_US
dc.subject Photopolymers en_US
dc.subject diffraction efficiency en_US
dc.title Fabrication and Characterization of Dye Sensitized Polymer Films for Holographic Applications en_US
dc.type Thesis en_US


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