| EPSRC Reference: |
GR/R35681/01 |
| Title: |
Patterned Opal-Based Structures for Optoelectronic Applications |
| Principal Investigator: |
Johnson, Dr NP |
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| Department: |
Electronics and Electrical Engineering |
| Organisation: |
University of Glasgow |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 2001 |
Ends: |
31 March 2005 |
Value (£): |
315,595
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Materials Synthesis & Growth |
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Summary on Grant Application Form |
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We propose to fabricate patterned opal-based structures for optoelectronics applications. Using electron-beam written templates with arrays of shallow holes, photonic crystals will be synthesised by template-directed epitaxial growth of silica and latex spheres. The templates will allow us to control the growth orientation and shape of the crystal and introduce intentional photonic crystal defects, thus forming the basis for optoelectronic device elements. We propose also to demonstrate optical localisation and waveguide-type confinement, which are important for optoelectronic functionality, by the formation of line defects, eg from changes in the template symmetry or by variation of ball size, refractive index and infill material.The physical incorporation of fluorescent dyes in solvent into opal photonic crystal structures will provide an important proof of principle to demonstrate lasing action in the structures. The incorporation of solid dyes into the spheres before crystallisation will aid observation of the growth process, while post-growth incorporation of dye will provide a more stable solid gain medium.We also propose to develop the infilling of various shaped opal and inverted opal based photonic crystal structures with GaN, using knowledge gained in our dye-based study and a reduced temperature MOCVD process.
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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.gla.ac.uk |