| EPSRC Reference: |
GR/H93255/01 |
| Title: |
PROGRAMMABLE PHASE TRANSFORMER (PPT) AND ITS APPLICATIONS |
| Principal Investigator: |
Paige, Professor E |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Engineering Science |
| Organisation: |
University of Oxford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1992 |
Ends: |
30 September 1995 |
Value (£): |
281,762
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| EPSRC Research Topic Classifications: |
| Optical Devices & Subsystems |
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Summary on Grant Application Form |
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To investigate by simulation and implementation the performance of a device - a programmable phase transformer - designed to produce optimally desired light intensity distributed over a plane using a programmable binary phase spatial filter. To advance the design of the PPT to the point at which it is a competitive computing engine for self evaluation of optimum performance To study the application of the PPT.Progress:The following list of achievements indicates our progress:(i) The first demonstration of a programmable, binary,phase-only, FLCSLM (the so called PPT). (Broom field, Neil, Paige and Yang, Electron. Letts. 28, 26, 1992.)(ii) Demonstration of a novel means of forming holograms via feed-back of image information via a computer to determine the pixel pattern of a PPT so producing 'Feedback Generated Holograms' (Paige, Scarbrough and Yang; Electron. Lett 30, 1174, 1994.)(iii) Symmetry breaking for beam formation using a PPT; theory and experimental demonstration. (Neil and Paige, IEE Conf. Pub. 379, 85, 1993.)(iv) Novel scheme for enhancing the transmission of the PPT - theory and experiment. (Neil and Paige, Electron. Letts., 30, 445, 1994.)(v) The first demonstration that 3D (optical) radiation fields can be created to specification using iterative optimisation as the design method. This is of relevance to beam formation and shaping including control of side lobes. (Chen and Paige, Electron. Letts., 30, 735, 1994.)(vi) The demonstration of a multi-level PPT as an aberration corrector such as might be used in an adaptive optic, terrestrial, astronomical telescope. (I.D. Thomas, M.Sc. Thesis.)
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Key Findings |
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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 |