| EPSRC Reference: |
GR/M20747/01 |
| Title: |
IMPROVED NONLINEAR OPTICAL PROPERTIES OF SPUN-COATED AND LB FILMS |
| Principal Investigator: |
Ashwell, Professor G |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Sch of Engineering |
| Organisation: |
Cranfield University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 November 1998 |
Ends: |
31 March 2002 |
Value (£): |
104,636
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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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We have recently observed the strongest second-harmonic generation (SHG) to datefrom an LB film by interleaving layers of a novel cationic coumarin dye with those of a suitable spacer. The second-order susceptibility (Xzzz) of the alternate-layer film is 300 pm V-1 at 1.064 um and this increses to 500 pm V-1 for the non-interleaved Z-type structure (cf. 11.8 pm V-1 for LiNBO3). The films are stable and have shown no sign of deterioration. Thus, we aim to optimise the result by the design and synthesis of film-forming materials with improved second-order properties. This will be carried out in collaboration with Professor Grummt in Jena (molecular modelling) and Dr Gentle in Brisbane and Tsukuba (X-ray synchroton diffraction).Optically nonlinear dyes.
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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 |
| Summary |
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| Date Materialised |
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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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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cranfield.ac.uk |