| EPSRC Reference: |
GR/L10857/01 |
| Title: |
INTERLOCKING LB FILM STRUCTURES OF OPTICALLY NON-LINEAR DYES |
| Principal Investigator: |
Ashwell, Professor G |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Industrial and Manufacturing Scie |
| Organisation: |
Cranfield University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1996 |
Ends: |
31 March 1999 |
Value (£): |
117,905
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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Summary on Grant Application Form |
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At Cranfield we have obtained the strongest second harmonic generation (SHG) to date from a coloured L B film (resonantly enhanced) and also, more importantly, from a transparent film (J. Mater. Chem., February issue). This has been achieved by using a hydrophilic chromophore terminated at each end by hydrophobic alkyl chains. The molecules adopt a stretched rather than a U-shaped configuration and align with the shorter of the two groups adjacent to the water subphase. The molecules retain this orientation when deposited and using this technique quadratic SHG enhancement has been observed to thicknesses greater than 150 layers. Based on this discovery the aim is fabricate homomolecular films in which the layers interlock (molecular zips). Our preliminary studies have shown that this should lead to a more ordered structure, low optical loss and a significantly higher second-order susceptibility.
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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 |