| EPSRC Reference: |
GR/R65619/01 |
| Title: |
Low-temperature scanning confocal optical microscopy of semiconductor systems |
| Principal Investigator: |
Richards, Professor D |
| Other Investigators: |
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| Department: |
Physics |
| Organisation: |
Kings College London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
18 March 2002 |
Ends: |
17 September 2005 |
Value (£): |
211,478
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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Summary on Grant Application Form |
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The proposed research is directed towards the development and application of a scanning confocal optical microscope for high resolution investigations of semiconductor systems at cryogenic temperatures. The construction of the low-temperature microscope will be based around the investigator's equipment for low-temperature scanning near-field optical microscope (SNOM) - a large sample space liquid helium optical access cryostat and, in the initial stages of the grant period, the SNOM insert itself for high resolution low-temperature scanning. A confocal arrangement will be implemented for illumination and collection of light from the sample, with the use of solid immersion lenses also investigated for further improved resolution. A scheme for high-resolution imaging will be employed by scanning the confocal source/detector, externally to the cryostat, in conjunction with a low-temperature focussing and coarse positioning stage inside the cryostat (to be constructed and commissioned during the first 18 months of the grant period). The low-temperature scanning confocal microscope will be applied to the study of doped GaAs/AIGaAs reactive-ion etched quantum wires, annealed InAs/GaAs quantum dots (a I=TIR spectrometer will be used for the measurement of unanealed samples with longer wavelength emission) and defects in polycrystalline CVD and irradiated diamond.
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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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