Mr. Peter M. Thorne Profile

Peter M. Thorne

Engineering Manager at Leonardo MW Ltd

SPIE Involvement:

Author

Area of Expertise:

Electro-optics , Microelectronics , ROIC design , Systems Engineering

Currently Technical Manager with broad responsibilities for technology and product based design and development. Previously, IC Design Team Leader completing over 40 silicon designs during last 15 years. Responsible for delivering company’s Silicon ROIC and other IC requirements from single element devices to long linear and large 2D staring arrays for use in a wide range of industrial, space and defence imaging and spectrometer applications.

Proceedings Article | 26 August 2022 Presentation + Paper

Linear-mode avalanche photodiode arrays in HgCdTe at Leonardo UK

Egle Zemaityte, Dan Owton, Chris Maxey, Jim Gordon, Vincent Isgar, Les Hipwood, Matthew Hicks, Keith Barnes, Peter Thorne, Ian Baker

Proceedings Volume 12183, 1218317 (2022) https://doi.org/10.1117/12.2634331

KEYWORDS: Mercury cadmium telluride, Astronomy, Avalanche photodetectors, Telescopes, Readout integrated circuits, Sensors, Wavefront sensors, Doping

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Proceedings Article | 18 June 2013 Paper

16 megapixel 12um array developments at Selex ES

P. Thorne, J. Gordon, L. Hipwood, A. Bradford

Proceedings Volume 8704, 87042M (2013) https://doi.org/10.1117/12.2015886

KEYWORDS: Staring arrays, Readout integrated circuits, Mid-IR, Sensors, Diodes, Imaging arrays, Silicon, Infrared sensors, Manufacturing, Modulation transfer functions

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Proceedings Article | 11 June 2013 Paper

A miniature ruggedized fast frame rate infrared sensor module for hostile fire detection and industrial applications

Andrew Ashcroft, Lee Richardson, Richard Ash, Peter Thorne, David Isgar, David Jeckells, Martin Stevens, Tim Davey, Asim Malik

Proceedings Volume 8704, 87040F (2013) https://doi.org/10.1117/12.2015861

KEYWORDS: Sensors, Electronics, Infrared sensors, Flame detectors, Readout integrated circuits, Mid-IR, Photodiodes, Cameras, Control systems, Semiconducting wafers

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Proceedings Article | 19 November 2012 Open Access

Developments in MOVPE HgCdTe arrays for passive and active infrared imaging

Ian Baker, Chris Maxey, Les Hipwood, Harald Weller, Peter Thorne

Proceedings Volume 8542, 85421A (2012) https://doi.org/10.1117/12.981850

KEYWORDS: Mercury cadmium telluride, Sensors, Readout integrated circuits, Gallium arsenide, Thermography, Cameras, Liquid phase epitaxy, Crystals, Staring arrays, Imaging arrays

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Proceedings Article | 25 September 2012 Paper

Evaluation and optimization of NIR HgCdTe avalanche photodiode arrays for adaptive optics and interferometry

Gert Finger, Ian Baker, Domingo Alvarez, Derek Ives, Leander Mehrgan, Manfred Meyer, Joerg Stegmeier, Peter Thorne, Harald Weller

Proceedings Volume 8453, 84530T (2012) https://doi.org/10.1117/12.926288

KEYWORDS: Avalanche photodetectors, Readout integrated circuits, Sensors, Mercury cadmium telluride, Wavefront sensors, Liquid phase epitaxy, Nondestructive evaluation, Capacitance, Prototyping, Video

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Proceedings Article | 31 May 2012 Paper

12µm pixel pitch development for 3-side buttable megapixel MW FPAs

P. Thorne, H. Weller, L. Hipwood

Proceedings Volume 8353, 83532J (2012) https://doi.org/10.1117/12.919075

KEYWORDS: Readout integrated circuits, Medium wave, Silicon, Staring arrays, Diodes, Gallium arsenide, Sensors, Photomasks, Semiconducting wafers, Metals

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Proceedings Article | 21 May 2011 Paper

Latest detector developments with HgCdTe grown by MOVPE on GaAs substrates

P. Abbott, P. Thorne, C. Arthurs

Proceedings Volume 8012, 801236 (2011) https://doi.org/10.1117/12.885185

KEYWORDS: Sensors, Medium wave, Readout integrated circuits, Electronics, Capacitors, Human-machine interfaces, Mercury cadmium telluride, Gallium arsenide, Interfaces, Capacitance

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Proceedings Article | 9 October 2008 Paper

Recent developments in very long wave and shortwave infrared detection for space applications

Andrew Ashcroft, Chris Jones, Les Hipwood, Ian Baker, Peter Thorne, Nick Shorrocks, Peter Knowles, Harald Weller

Proceedings Volume 7106, 71061I (2008) https://doi.org/10.1117/12.800099

KEYWORDS: Diodes, Sensors, Avalanche photodetectors, Amplifiers, Readout integrated circuits, Resistance, Photodiodes, Capacitance, Thermography, Signal to noise ratio

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Proceedings Article | 5 May 2008 Paper

Dual-band MW/LW IRFPAs made from HgCdTe grown by MOVPE

J. Price, C. Jones, L. Hipwood, C. Shaw, P. Abbot, C. Maxey, H. W. Lau, J. Fitzmaurice, R. Catchpole, M. Ordish, P. Thorne, H. Weller, R. Mistry, K. Hoade, A. Bradford, D. Owton, P. Knowles

Proceedings Volume 6940, 69402S (2008) https://doi.org/10.1117/12.784483

KEYWORDS: Medium wave, Sensors, Mercury cadmium telluride, Diodes, Readout integrated circuits, Semiconducting wafers, Staring arrays, Infrared imaging, Gallium arsenide, Infrared radiation

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Proceedings Article | 18 April 2008 Paper

Advanced infrared detectors for multimode active and passive imaging applications

Ian Baker, Daniel Owton, Keith Trundle, Peter Thorne, Kevin Storie, Philip Oakley, Jeremy Copley

Proceedings Volume 6940, 69402L (2008) https://doi.org/10.1117/12.780469

KEYWORDS: Sensors, Imaging systems, Cameras, 3D image processing, Pulsed laser operation, Thermography, Mercury cadmium telluride, Electronics, Multiplexers, 3D acquisition

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Proceedings Article | 17 October 2007 Paper

Infrared sensors for Earth observation missions

P. Ashcroft, P. Thorne, H. Weller, I. Baker

Proceedings Volume 6744, 67440W (2007) https://doi.org/10.1117/12.754793

KEYWORDS: Sensors, Diodes, Readout integrated circuits, Avalanche photodetectors, Short wave infrared radiation, Infrared sensors, Signal to noise ratio, Infrared radiation, Mid-IR, Capacitance

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Proceedings Article | 17 May 2006 Paper

Advanced multifunctional detectors for laser-gated imaging applications

Ian Baker, Peter Thorne, James Henderson, Jeremy Copley, David Humphreys, Alasdair Millar

Proceedings Volume 6206, 620608 (2006) https://doi.org/10.1117/12.673577

KEYWORDS: Sensors, Thermography, Imaging systems, Mercury cadmium telluride, Pulsed laser operation, Image sensors, 3D image processing, Signal processing, Laser applications, Multiplexers

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The rapid pace of development in the field of long-range imaging is illustrated by two new detector technologies for passive and active imaging. Active systems, using a near-infrared pulse laser and a fast, gated detector, are now adopted for most long range imaging applications. This concept is often called burst-illumination LIDAR or BIL. The SELEX solid state detector is based on two major components: an array of HgCdTe avalanche photodiodes, and a custom-designed CMOS multiplexer to perform the fast gating and photon signal capture. These hybrid arrays produce sensitivities as low as 10 photons rms, due largely to very high, almost noise-free avalanche gain in the HgCdTe diodes. The sensitivity, dynamic range and image quality is now such that the camera performance is usually limited by coherence and scintillation effects in the scene. With this strong sensor capability, it has been possible to launch the next generation of multiplexers to satisfy systems of the future. For instance, most laser-gated imaging systems use a suite of passive infrared and visible cameras to complement the BIL channel. It is highly advantageous to combine these functions into one electro-optic system, leading to a simpler, smaller, lower power and lower cost system. The key technical steps are to find solutions for the difficult multifunctional detector and the dual-wavelength optic. A detector has been developed to image passively in the medium and short wavebands, and actively in BIL mode. The performance of the detector and optic is described. Another major systems enhancement is to be able to generate 3D images, particularly in complex scenes, to further improve background clutter rejection and provide agile, feedback control of the range gating in a dynamic environment. Here the detector senses the range, as well as the laser pulse intensity, on a pixel-by-pixel basis, providing depth context for each laser pulse. A prototype detector has been successfully demonstrated and shown to provide good quality 2D and 3D data for each laser pulse.

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