| EPSRC Reference: |
GR/R99324/01 |
| Title: |
Extraordinary light transmission through aperture arrays: analysis via 3D transient maxwell's equations |
| Principal Investigator: |
Walker, Dr S |
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| Project Partners: |
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| Department: |
Mechanical Engineering |
| Organisation: |
Imperial College London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 September 2003 |
Ends: |
30 November 2006 |
Value (£): |
169,601
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Summary on Grant Application Form |
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SummaryDescribe the proposed research in about 200 words.Greater light transmission, by factors of up to 1000, through arrays of sub-wavelength holes has been observed than single aperture theory predicts. It is proposed to investigate this extraordinary behaviour theoretically, by solving the full Maxwell's equations for the three dimensional, multi-wavelength problem domain. This is only now possible, as recent advances in the mathematical methods used for radio-frequency electromagnetic computation, driven by military `stealth' requirements, have produced a vast step increase in computational capability. These techniques will be extended to this optical area. The primary objective is to investigate the physics of the phenomenon; to conduct parameter surveys, to try to gain generic understanding of the dependence of the enhanced transmission on the parameters of the problem. A delay in transmission is observed, consistent with the time required to establish some resonant interaction between members of the array of holes. A time domain solution will be used, the allow the evolution of the fields to be observed, and to permit this delay to be investigated directly.
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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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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.imperial.ac.uk |