| EPSRC Reference: |
GR/M73439/01 |
| Title: |
NEW THEORY OF LOCAL FIELD IN REORIENTATIONAL ELECTRO- OPTICAL POLYMERS AND APPLICATION TO PHOTOREFRACTION |
| Principal Investigator: |
West, Dr D |
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| Department: |
Physics & Astronomy |
| Organisation: |
Victoria University of Manchester, The |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 November 1999 |
Ends: |
31 October 2001 |
Value (£): |
116,629
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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A 24 month programme of experiments and theoretical work is proposed aiming for:1. An improved steady state model of the written hologram in a photorefractive polymer, that is consistent with all experimental data.2. The first dynamic model of the holographic formation process in photorefractive polymers, including rotational diffusion, dispersive transport and all other relevant phenomena.3. Clarification of the roles of charge photogeneration and trapping, both in the dynamic and the steady-state regimes.Static, electric field-dependent ellipsometry, anisotropic absorption and a Mach-Zehnder interferometer will be used to quantify the local space-charge field distribution within a reorientational, photorefractive polymer composite. Transient ellipsometry will reveal then the molecular reorientation dynamics. Holographic time-of-flight expermients on these, dispersive materials will be modelled using stochastic methods. Charge generation and trapping dynamcis will be introduced subsequently, in order to model CW exposures. Measurements of relevant material parameters will be conducted in-house with the exception of charge transport properties to be studied in collaboration with Heinz Baessler in the University of Marburg.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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