| EPSRC Reference: |
GR/M88969/01 |
| Title: |
DISCHARGE-ABLATED CAPILLARY WAVEGUIDES FOR DRIVING SHORT-WAVELENGTH LASERS |
| Principal Investigator: |
Hooker, Professor S |
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| Department: |
Oxford Physics |
| Organisation: |
University of Oxford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1999 |
Ends: |
30 September 2001 |
Value (£): |
97,678
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| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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For table-top short-wavelength lasers driven by terawatt femtosecond laser, both the efficiency of energy extraction, and the number of x-ray laser realised, are presently limited by severe defocusing of the pump laser beam. We aim to overcome this restriction by building on our recent results in which we used a discharge-ablated capillary to guide laser pulses over lengths of 10 nm at an input intensity of 10^16 W/cm^2.The proposed research aims to optimise the operation of this novel wave-guide, and to use it to drive short wavelength lasers within the guiding channel for the first tie. To this end we will measure the evolution of the guiding channel during the discharge pulse and investigate how the channel may be optimised. We will develop new gas-filled versions of the guide, providing a wide range of potential main media. We aim to demonstrate improved guiding performance with input densities of greater than 10^17 W/cm^2. As an illustration of the promise of this new approach, we aim to achieve saturated separation of the 41.8 nm laser in Xe IX, and its analogues in Kr and Ar. This will be the first demonstration of saturation of a table-top laser operating below 50 nm.
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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.ox.ac.uk |