| EPSRC Reference: |
GR/N01736/01 |
| Title: |
NOVEL VACUUM TECHNOLOGY FOR COMPACT TERAHERTZ FREQUENCY SOURCES |
| Principal Investigator: |
Lawes, Professor R |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Technology |
| Organisation: |
STFC Laboratories (Grouped) |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 February 2000 |
Ends: |
30 June 2002 |
Value (£): |
197,233
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| EPSRC Research Topic Classifications: |
| Instrumentation Eng. & Dev. |
Microsystems |
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| EPSRC Industrial Sector Classifications: |
| Manufacturing |
Communications |
| Electronics |
Food and Drink |
| Healthcare |
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| Related Grants: |
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| Panel History: |
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Summary on Grant Application Form |
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This Proposal offers a novel solution to the problem of radiation sources in the terahertz gap; such sources commercially-significant applications in imaging (including medical imaging, especially of teeth, skin and near-surface joints) communications, surveillance and sensing. Vacuum tube technology (eg as used in the klystron) is Ire-invented' using two new technologies: micromachining and field emitter (FE) electron sources These are `natural' methods to extend the frequency range of vacuum tubes into the terahertz (THz) region, and make devices compact and operate at low voltages (100v). The result is a completely new class of device, wit] individual output powers in the millwatt range, which might also be integrated with a mixer in a detector, orcombined with several other devices as a powerful terahertz source in an array system. The chosen demonstration is a klystron this will be constructed using a high current FE array source and an on-chip electrostatic lens Initially, a re-entrant cavity structure will be built by conventional machining technology, and both units w: be assembled as a reflex klystron operating at 500GHz. The cavity and reflector will then be fabricated bymachining techniques and combined with field emitter array in a vacuum encapsulated device.- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Keywords describing areas of proposal. - - terahertz sources, field emitters, micromachining, klyst
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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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