Dr. Chris Slinger Profile

Dr. Chris Slinger

Technical Director/Optronics at QinetiQ Ltd

SPIE Involvement:

Author

Publications (30)

Proceedings Article | 8 September 2011 Open Access

An adaptive coded aperture imager: building, testing and trialing a super-resolving terrestrial demonstrator

Christopher Slinger, Charlotte Bennett, Gavin Dyer, Kevin Gilholm, Neil Gordon, David Huckridge, Mark McNie, Richard Penney, Ian Proudler, Kevin Rice, Kevin Ridley, Lee Russell, Geoffrey de Villiers, Philip Watson

Proceedings Volume 8165, 816511 (2011) https://doi.org/10.1117/12.895435

KEYWORDS: Point spread functions, Imaging systems, Sensors, Staring arrays, Super resolution, Optical design, Image resolution, Coded aperture imaging, Calibration, Image processing

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Proceedings Article | 8 September 2011 Paper

Establishing a MOEMS process to realise microshutters for coded aperture imaging applications

Mark McNie, Rhodri Davies, Ashley Johnson, Nicola Price, Charlotte Bennett, Christopher Slinger, Busbee Hardy, Greg Hames, Demaul Monk, Stanley Rogers

Proceedings Volume 8165, 81651D (2011) https://doi.org/10.1117/12.895510

KEYWORDS: Microopto electromechanical systems, Coded aperture imaging, Imaging systems, Mirrors, Electrodes, Mid-IR, Manufacturing, Microelectromechanical systems, Oxides, Doping

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Proceedings Article | 28 August 2010 Paper

Optical design of a coded aperture infrared imaging system with resolution below the pixel limit

Charlotte Bennett, Kevin Ridley, Geoff de Villiers, Philip Watson, Christopher Slinger, Philip Rogers

Proceedings Volume 7818, 78180H (2010) https://doi.org/10.1117/12.861396

KEYWORDS: Point spread functions, Imaging systems, Super resolution, Optical design, Staring arrays, Image resolution, Coded aperture imaging, Signal to noise ratio, Calibration, Mid-IR

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Proceedings Article | 28 August 2010 Paper

Coded aperture system performance comparison with conventional optics based approaches

David Huckridge, Helen Bennett, Kevin Ridley, Chris Slinger, Philip Rogers, Kevin Rice

Proceedings Volume 7818, 78180A (2010) https://doi.org/10.1117/12.860609

KEYWORDS: Sensors, Imaging systems, Computer aided design, Optical design, Super resolution, Spatial resolution, Mirrors, Diffraction, Computing systems, Optical components

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Proceedings Article | 28 August 2010 Paper

An experimental infrared sensor using adaptive coded apertures for enhanced resolution

Neil Gordon, Geoffrey de Villiers, Kevin Ridley, Charlotte Bennett, Mark McNie, Ian Proudler, Lee Russell, Christopher Slinger, Kevin Gilholm

Proceedings Volume 7818, 781806 (2010) https://doi.org/10.1117/12.860802

KEYWORDS: Point spread functions, Microopto electromechanical systems, Image resolution, Sensors, Imaging systems, Photomasks, Infrared imaging, Infrared cameras, Image enhancement, Infrared sensors

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Proceedings Article | 28 August 2010 Paper

Tracking point targets at sub-pixel accuracy in adaptive coded aperture imagery without decoding

Kevin Gilholm, Christopher Slinger, Neil Gordon, Kevin Ridley, Helen Bennett, Mark McNie

Proceedings Volume 7818, 781808 (2010) https://doi.org/10.1117/12.861150

KEYWORDS: Detection and tracking algorithms, Coded apertures, Staring arrays, Point spread functions, Imaging systems, Sensors, Particles, Particle filters, Coded aperture imaging, Solids

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Proceedings Article | 25 August 2009 Paper

A scalable multi-chip architecture to realise large-format microshutter arrays for coded aperture applications

Mark McNie, David King, Gilbert Smith, Steven Stone, Alan Brown, Neil Gordon, Christopher Slinger, Kevin Cannon, Stephen Riches, Stanley Rogers

Proceedings Volume 7468, 74680E (2009) https://doi.org/10.1117/12.829105

KEYWORDS: Microopto electromechanical systems, Mirrors, Mid-IR, Imaging systems, Silicon, Fabry–Perot interferometers, Coded aperture imaging, Microelectromechanical systems, Coded apertures, Semiconducting wafers

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Proceedings Article | 25 August 2009 Paper

Visible band lens-free imaging using coded aperture techniques

Kevin Ridley, Geoffrey de Villiers, Douglas Payne, Rebecca Wilson, Christopher Slinger

Proceedings Volume 7468, 746809 (2009) https://doi.org/10.1117/12.828580

KEYWORDS: Sensors, Signal to noise ratio, Imaging systems, Diffraction, Coded aperture imaging, Point spread functions, Visible radiation, Image resolution, Coded apertures, Detector arrays

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Proceedings Article | 22 August 2009 Paper

Sub-pixel super-resolution by decoding frames from a reconfigurable coded-aperture camera: theory and experimental verification

Geoffrey de Villiers, Neil Gordon, Douglas Payne, Ian Proudler, Ian Skidmore, Kevin Ridley, Charlotte Bennett, Rebecca Wilson, Christopher Slinger

Proceedings Volume 7468, 746806 (2009) https://doi.org/10.1117/12.828581

KEYWORDS: Sensors, Detector arrays, Imaging systems, Image resolution, Super resolution, Diffraction, Mid-IR, Cameras, Staring arrays, Signal processing

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Proceedings Article | 19 August 2008 Paper

Adaptive coded aperture imaging in the infrared: towards a practical implementation

Chris Slinger, Kevin Gilholm, Neil Gordon, Mark McNie, Doug Payne, Kevin Ridley, Malcolm Strens, Mike Todd, Geoff De Villiers, Philip Watson, Rebecca Wilson, Gavin Dyer, Mike Eismann, Joe Meola, Stanley Rogers

Proceedings Volume 7096, 709609 (2008) https://doi.org/10.1117/12.805372

KEYWORDS: Imaging systems, Signal to noise ratio, Mid-IR, Coded aperture imaging, Sensors, Infrared imaging, Infrared radiation, Staring arrays, Detection and tracking algorithms, Point spread functions

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Proceedings Article | 19 August 2008 Paper

A large area reconfigurable MOEMS microshutter array for coded aperture imaging systems

Mark McNie, David King, Nicola Price, David Combes, Gilbert Smith, Alan Brown, Neil Gordon, Steven Stone, Kevin Brunson, Keith Lewis, Christopher Slinger, Stanley Rogers

Proceedings Volume 7096, 70960D (2008) https://doi.org/10.1117/12.794996

KEYWORDS: Microopto electromechanical systems, Mirrors, Imaging systems, Mid-IR, Coded aperture imaging, Electrodes, Fabry–Perot interferometers, Control systems, Silicon, Image resolution

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Proceedings Article | 16 October 2007 Paper

Coded aperture systems as non-conventional lensless imagers for the visible and infrared

Chris Slinger, Neil Gordon, Keith Lewis, Gregor McDonald, Mark McNie, Doug Payne, Kevin Ridley, Malcolm Strens, Geoff De Villiers, Rebecca Wilson

Proceedings Volume 6737, 67370D (2007) https://doi.org/10.1117/12.739043

KEYWORDS: Diffraction, Coded aperture imaging, Detector arrays, Sensors, Imaging systems, Infrared imaging, Photomasks, Infrared radiation, Image quality, Microopto electromechanical systems

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Proceedings Article | 26 September 2007 Paper

Reconfigurable mask for adaptive coded aperture imaging (ACAI) based on an addressable MOEMS microshutter array

Mark McNie, David Combes, Gilbert Smith, Nicola Price, Kevin Ridley, Keith Lewis, Chris Slinger, Stanley Rogers

Proceedings Volume 6714, 67140B (2007) https://doi.org/10.1117/12.735894

KEYWORDS: Mirrors, Microopto electromechanical systems, Coded aperture imaging, Mid-IR, Switching, Electrodes, Modulators, Imaging systems, Silicon, Fabry–Perot interferometers

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Proceedings Article | 26 September 2007 Paper

An investigation of the potential for the use of a high resolution adaptive coded aperture system in the mid-wave infrared

Chris Slinger, Michael Eismann, Neil Gordon, Keith Lewis, Gregor McDonald, Mark McNie, Doug Payne, Kevin Ridley, Malcolm Strens, Geoff De Villiers, Rebecca Wilson

Proceedings Volume 6714, 671408 (2007) https://doi.org/10.1117/12.736071

KEYWORDS: Sensors, Diffraction, Signal to noise ratio, Coded aperture imaging, Detector arrays, Photomasks, Imaging systems, Image quality, Target detection, Mid-IR

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Proceedings Article | 29 June 2004 Paper

Recent developments in computer-generated holography: toward a practical electroholography system for interactive 3D visualization

Christopher Slinger, Colin Cameron, Stuart Coomber, Richard Miller, Doug Payne, Allan Smith, Mark Smith, Maurice Stanley, Philip Watson

Proceedings Volume 5290, (2004) https://doi.org/10.1117/12.526690

KEYWORDS: Computer generated holography, 3D image processing, Diffraction, Holograms, Computing systems, Binary data, Mirrors, Algorithm development, Image quality, Eye

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Proceedings Article | 18 February 2004 Paper

3D electronic holography display system using a 100 mega-pixel spatial light modulator

Maurice Stanley, Mark Smith, Allan Smith, Philip Watson, Stuart Coomber, Colin Cameron, Christopher Slinger, Andrew Wood

Proceedings Volume 5249, (2004) https://doi.org/10.1117/12.516540

KEYWORDS: Optically addressed spatial light modulators, Computer generated holography, Holography, 3D displays, 3D image processing, Spatial light modulators, Holograms, Video, Binary data, Image segmentation

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Proceedings Article | 4 June 2003 Paper

100-megapixel computer-generated holographic images from Active Tiling: a dynamic and scalable electro-optic modulator system

Maurice Stanley, Robert Bannister, Colin Cameron, Stuart Coomber, Ian Cresswell, Jonathan Hughes, Victor Hui, Peregrine Jackson, Keith Milham, Richard Miller, Douglas Payne, John Quarrel, Dave Scattergood, Allan Smith, Mark Smith, Denver Tipton, Philip Watson, Pam Webber, Christopher Slinger

Proceedings Volume 5005, (2003) https://doi.org/10.1117/12.473866

KEYWORDS: Optically addressed spatial light modulators, Computer generated holography, Holography, Holograms, Binary data, Image segmentation, 3D displays, Optical systems, Video, 3D image processing

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Proceedings Article | 26 December 2001 Paper

Image replication with diffractive structures

Andrew Harvey, Douglas Payne, Mark Smith, Maurice Stanley, Christopher Slinger

Proceedings Volume 4438, (2001) https://doi.org/10.1117/12.451478

KEYWORDS: Diffraction, Diffraction gratings, Multiplexing, Optical design, Point spread functions, Binary data, Optical aberrations, Holographic optical elements, Monochromatic aberrations, Holography

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Proceedings Article | 8 November 2001 Paper

Optically addressed spatial light modulators for replaying computer-generated holograms

Stuart Coomber, Colin Cameron, Jonathon Hughes, David Sheerin, Christopher Slinger, Mark Smith, Maurice Stanley

Proceedings Volume 4457, (2001) https://doi.org/10.1117/12.447756

KEYWORDS: Optically addressed spatial light modulators, Computer generated holography, Image segmentation, Diffraction, Liquid crystals, Holography, Modulation, Holograms, Video, Switching

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Proceedings Article | 4 June 2001 Paper

Progress and prospects for practical electroholographic display systems

Christopher Slinger, Robert Bannister, Colin Cameron, Stuart Coomber, Ian Cresswell, Peter Hallett, Jonathon Hughes, Victor Hui, John Jones, Richard Miller, Victoria Minter, Douglas Payne, Dave Scattergood, David Sheerin, Mark Smith, Maurice Stanley

Proceedings Volume 4296, (2001) https://doi.org/10.1117/12.429455

KEYWORDS: Computer generated holography, Optically addressed spatial light modulators, Holography, Image segmentation, Modulators, Holograms, 3D image processing, Algorithm development, Diffraction, Visualization

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Proceedings Article | 17 November 2000 Paper

Computational challenges of emerging novel true 3D holographic displays

Colin Cameron, Douglas Pain, Maurice Stanley, Christopher Slinger

Proceedings Volume 4109, (2000) https://doi.org/10.1117/12.409213

KEYWORDS: Computer generated holography, Holography, Algorithm development, Image quality, Computer architecture, Visualization, 3D displays, Holograms, Stereo holograms, 3D image processing

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Proceedings Article | 17 March 2000 Paper

Creation of large-area absorption grey-level CGHs of 3D objects: writing and printing regimes for high dynamic range with high printing speed

Nicholas Phillips, Colin Cameron, Adrian Dodd, Christopher Slinger

Proceedings Volume 3956, (2000) https://doi.org/10.1117/12.380012

KEYWORDS: Printing, Transmittance, Computer generated holography, Calibration, Head, Densitometry, Absorption, Electronics, High dynamic range imaging, Absorbance

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Proceedings Article | 17 March 2000 Paper

Novel electro-optic modulator system for the production of dynamic images from giga-pixel computer-generated holograms

Maurice Stanley, Patrick Conway, Stuart Coomber, John Jones, Dave Scattergood, Christopher Slinger, Robert Bannister, Carl Brown, William Crossland, Adrian Travis

Proceedings Volume 3956, (2000) https://doi.org/10.1117/12.379994

KEYWORDS: Optically addressed spatial light modulators, Computer generated holography, Holography, Image segmentation, Holograms, Liquid crystals, Video, LCDs, Electrooptic modulators, Modulators

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Proceedings Article | 16 August 1999 Paper

Quantitative evaluation of 3D images produced from computer-generated holograms

David Sheerin, Ian Mason, Colin Cameron, Douglas Payne, Christopher Slinger

Proceedings Volume 3690, (1999) https://doi.org/10.1117/12.357612

KEYWORDS: Computer generated holography, Image quality, 3D image processing, Image processing, Holograms, Modulation, 3D displays, Visualization, Holography, 3D modeling

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Proceedings Article | 25 March 1999 Paper

Large-scale computer-generated absorption holograms of 3D objects: I. Theoretical background and visual concepts

Colin Cameron, Douglas Payne, David Sheerin, Christopher Slinger, Nicholas Phillips, Adrian Dodd

Proceedings Volume 3637, (1999) https://doi.org/10.1117/12.343783

KEYWORDS: Computer generated holography, Image quality, Holograms, Computer aided design, 3D image processing, Modulation, Absorption, Spatial light modulators, Quantization, Visualization

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Proceedings Article | 25 March 1999 Paper

Large-scale computer-generated absorption holograms of 3D objects: II. Practical methodology

Nicholas Phillips, Colin Cameron, Adrian Dodd, Douglas Payne, David Sheerin, Christopher Slinger

Proceedings Volume 3637, (1999) https://doi.org/10.1117/12.343784

KEYWORDS: Holograms, Computer generated holography, Printing, Holography, Silver, Transmittance, Absorption, Laser development, Quantization, Absorbance

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Proceedings Article | 9 June 1998 Paper

IR diffractive structures produced using novel photodarkening in chalcogenide glasses

Abdelkarim Zekak, Peter Ewen, Christopher Slinger, Patrick Conway, Douglas Payne, A. Owen

Proceedings Volume 3282, (1998) https://doi.org/10.1117/12.311527

KEYWORDS: Etching, Diffraction gratings, Glasses, Absorption, Chalcogenide glass, Refractive index, Holography, Chemical elements, Diffraction, Chalcogenides

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Proceedings Article | 13 August 1997 Paper

Arsenic sulphide athermal singlets for 3- to 5-um imaging

Patrick Conway, Douglas Payne, Christopher Slinger, Philip Rogers, Abdelkarim Zekak, Peter Ewen

Proceedings Volume 3061, (1997) https://doi.org/10.1117/12.280360

KEYWORDS: Arsenic, Etching, Diamond turning, Diffraction gratings, Glasses, Infrared radiation, Zinc, Thin films, Manufacturing, Thermography

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Proceedings Article | 11 April 1997 Paper

Optimization strategies for MACH: a novel, electrically controllable, computer-generated hologram

Christopher Slinger, Pete Brett, Victor Hui, Graham Monnington, Douglas Payne, Ian Sage

Proceedings Volume 3015, (1997) https://doi.org/10.1117/12.271382

KEYWORDS: Liquid crystals, Computer generated holography, Wavefronts, Spatial light modulators, Wave propagation, Modeling, Optical alignment, Electrodes, Refractive index, Distortion

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Proceedings Article | 1 September 1991 Paper

Fabrication and properties of chalcogenide IR diffractive elements

Peter Ewen, Christopher Slinger, Abdolnasser Zakery, Abdelkarim Zekak, A. Owen

Proceedings Volume 1512, (1991) https://doi.org/10.1117/12.47152

KEYWORDS: Silver, Chalcogenides, Diffraction gratings, Metals, Chemical elements, Infrared radiation, Holography, Refractive index, Diffraction, Absorption

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The authors report on techniques used to manufacture IR diffractive elements in chalcogenide glasses and on measurements of the material properties relevant to the performance of these elements. The characteristics of the elements produced are also presented and compared with theoretical predictions. The fabrication process used is based on the photodissolution of Ag into amorphous As-S films. Both surface relief and volume phase modulated transmission elements have been made. The transmission of Ag photodoped and undoped As-S films was found to be >80% over the range 2-12 micrometers for films up to 2 micrometers thick, the main loss mechanism being reflection. The difference in refractive index between Ag photodoped and undoped As-S over the range 0.5-12 micrometers was 0.5 for the most heavily doped material, so that high modulations are achievable for phase gratings. Theory suggests that for these As-S materials, green illumination (e.g., 514.5 nm) is the most efficient for producing the deep structures required for many of these IR elements. Surface relief structures can be produced by removing undoped material with an alkali etchant (e.g., NaOH). For transmission gratings, any remaining metallic Ag must be removed, to avoid high losses: the most successful Ag etchant was found to be Fe(NO3)3 in water. For the bulk holographic transmission gratings produced, efficiencies of >33% were observed for first diffraction orders measured in air at 632.8 nm, the main loss mechanisms being absorption and reflection, with some scatter. Measurements at 1.5 micrometers have given efficiencies of >30%, stability requirements during holographic recording currently being the main limitation to higher efficiencies at these and longer wavelengths. The results of a theoretical analysis based on numerical solution of the appropriate coupled-wave equations and taking into account bulk losses with phase and absorption modulation are in good agreement with the observed diffraction efficiency data. Given the low material absorption in the IR, theoretical studies show that, with suitable coatings, >95% efficiency should be possible for properly optimized bulk gratings and blazed zone plates.

Showing 5 of 30 publications

Conference Committee Involvement (21)

Practical Holography XXVI: Materials and Applications

22 January 2012 | San Francisco, California, United States

Electro-Optical and Infrared Systems: Technology and Applications

21 September 2011 | Prague, Czech Republic

Adaptive Coded Aperture Imaging and Non-Imaging Sensors V

25 August 2011 | San Diego, California, United States

Practical Holography XXV: Materials and Applications

23 January 2011 | San Francisco, California, United States

Electro-Optical and Infrared Systems: Technology and Applications

22 September 2010 | Toulouse, France

Adaptive Coded Aperture Imaging and Non-Imaging Sensors IV

2 August 2010 | San Diego, California, United States

Practical Holography XXIV: Materials and Applications

25 January 2010 | San Francisco, California, United States

Electro-Optical and Infrared Systems: Technology and Applications VI

31 August 2009 | Berlin, Germany

Adaptive Coded Aperture Imaging and Non-Imaging Sensors III

2 August 2009 | San Diego, California, United States

Practical Holography XXIII: Materials and Applications

25 January 2009 | San Jose, California, United States

Electro-Optical and Infrared Systems: Technology and Applications V

16 September 2008 | Cardiff, Wales, United Kingdom

Adaptive Coded Aperture Imaging and Non-Imaging Sensors II

10 August 2008 | San Diego, California, United States

Practical Holography XXII: Materials and Applications

20 January 2008 | San Jose, California, United States

Electro-Optical and Infrared Systems: Technology and Applications

19 September 2007 | Florence, Italy

Adaptive Coded Aperture Imaging and Non-Imaging Sensors

30 August 2007 | San Diego, California, United States

Practical Holography XXI: Materials and Applications

21 January 2007 | San Jose, California, United States

Electro-Optical and Infrared Systems: Technology and Applications III

13 September 2006 | Stockholm, Sweden

Practical Holography XX: Materials and Applications

22 January 2006 | San Jose, California, United States

Electro-Optical and Infrared Systems: Technology and Applications II

26 September 2005 | Bruges, Belgium

Practical Holography XIX: Materials and Applications

26 January 2005 | San Jose, California, United States

Electro-Optical and Infrared Systems: Technology and Applications

25 October 2004 | London, United Kingdom

Showing 5 of 21 Conference Committees

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