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Theses

Photopolymères pour mémoire holographiques

Abstract : Data flow and its storage is one of the immediate requirements in present information age. There is a huge demand for a suitable storage media for immediate use and for data archive. Photopolymers are one of the most interesting materials with great storage potentials at extremely low cost. Photopolymers are attractive optical recording materials for holography, optical image multiplexing, holographic optical devices, and so forth because they have the capabilities of recording holograms of high spatial frequency and exhibit high diffractione fficiency. In this thesis we study and optimize various water soluble photopolymer compositions for their data storage capability as well s a good recording media using optical interferometry. Such optimized compositions are selectively sensitized using red to blue sensitizing dyes for optimum information storage. We also present two newly synthesized dyes absorbing in blue region as a promising media for holographic data storage with hig resolution embedded grating structures. The experimental results are explained using several supporting characterizations and measurements such as UV-VIS, FT-IR Spectroscopy, CV, DSC, TGA and MR. For enhancing the refractive index modulation the addition of dispersed SiO2 nanoparticles is used which also leads to remarkale reduction of film shrinkage.
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https://tel.archives-ouvertes.fr/tel-00259960
Contributor : Anne-Marie Plé <>
Submitted on : Thursday, December 11, 2008 - 4:31:37 PM
Last modification on : Friday, May 10, 2019 - 1:02:02 PM
Long-term archiving on: : Wednesday, September 22, 2010 - 11:08:20 AM

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  • HAL Id : tel-00259960, version 2

Citation

Katherine Pacheco. Photopolymères pour mémoire holographiques. Physique [physics]. Université d'Angers, 2007. Français. ⟨tel-00259960v2⟩

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