| EPSRC Reference: |
GR/R54194/01 |
| Title: |
Localized Surface Plasmons in Self-Assembling Metallic Nanocavities for Optoelectronics and Molecular Sensors |
| Principal Investigator: |
Baumberg, Professor JJ |
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| Department: |
Sch of Physics and Astronomy |
| Organisation: |
University of Southampton |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 February 2002 |
Ends: |
31 January 2005 |
Value (£): |
368,003
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| EPSRC Research Topic Classifications: |
| Materials Synthesis & Growth |
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Summary on Grant Application Form |
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We aim to develop nanopatterned metallic and metallo-dielectric optical materials based on localised plasmons, using a self-assembly approach that grows metallic nanocavities. Size-selected latex spheres are crystallised onto metallic substrates and metals are electrochemically grown through the interstices of this 3D template, resulting in metallic cups, hemispheres and spherical voids. We recently discovered that such gold nanocavities show strong optical resonances in reflectivity, each of which corresponds to a single confined plasmon whose frequency is controlled by the void diameter. This project will turn preliminary results into a controllable technology for fabricating photonic metal films. The linear and nonlinear optical properties will be enhanced and engineered by simple construction of sophisticated 3D structures. Metal heterostructures can be devised to produce a varied and tunable range of plasmon energy levels and wavefunctions. By combining dielectric and magnetic layers as well, we can access a vast array of new optical interactions which promise improved functionalities in low cost, large area, easy to control device and sensor construction. Such highlycontrolled metallic nanocavities also offer a greatly-improved tool for understanding and controlling the spectroscopy of single molecules. Large substrates of high-quality sub-micron precision optical cavities can be exploited by many disciplines from quantum optoelectronics to biotechnology.
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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.soton.ac.uk |