| EPSRC Reference: |
GR/M15606/01 |
| Title: |
PHOTONIC CRYSTAL DEVICES IN MICROSTRUCTURED NANO-POROUS SILICON |
| Principal Investigator: |
Snow, Dr PA |
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| Department: |
Physics |
| Organisation: |
University of Bath |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 March 1999 |
Ends: |
28 February 2001 |
Value (£): |
146,529
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The project aims to produce: 1) passive microcavities and wavelength-sensitive devices at communications wavelengths (1.33 and 1.55 microns) by microstructuring nano-porous silicon (p-Si) in three dimensions; and 2) light-emitting microstructured devices by introducing rare-earth doping.We will target applications of microstructured p-Si in infrared spectral regions outside the Si bandgap where absorption is negligible.The electrochemical doping of microstructured devices with rare-earth ions will produce optical gain optimised by photonic bandgap effects.Lateral patterning will be introduced using photodissolution via a multiply periodic holographic fringe pattern; this process will be optimised for light emitting devices.We propose to apply (and further develop) these techniques to produce p-Si devices with optical gain at useful wavelengths. For example, placing a high-gain Er3+ doped p-Si layer within a high finesse microcavity (made using low loss high reflectivity p-Si multilayer mirrors) will provide narrow linewidth emission at 1540 nm.The superposition of 2D etching on a multilayer structure which displays good waveguiding properties will produce a 3D photonic crystal.
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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.bath.ac.uk |