Dr. Douglas Jordan Profile

Dr. Douglas Jordan

at Teledyne e2v UK Ltd.

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 29 August 2022 Presentation + Paper

Thick silicon Hi-Rho CMOS with high red response

D. Jordan, R. Mackie, I. Read, J. Pratlong

Proceedings Volume 12191, 121910F (2022) https://doi.org/10.1117/12.2629951

KEYWORDS: Modulation transfer functions, Silicon, Quantum efficiency, Sensors, Near infrared, Photons, Photodiodes, Diffusion, Electrons, Transistors

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SPIE Journal Paper | 8 January 2021

Measurement and optimization of clock-induced charge in electron multiplying charge-coupled devices

Nathan Bush, Julian Heymes, David Hall, Andrew Holland, Douglas Jordan

JATIS, Vol. 7, Issue 01, 016002, (January 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.016002

KEYWORDS: Clocks, Electron multiplying charge coupled devices, Temperature metrology, Interference (communication), Signal processing, Signal generators, Sensors, Photon counting, Charge-coupled devices, Calibration

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Proceedings Article | 20 September 2020 Presentation + Paper

Development of III-V barrier diode radiation-hard infrared detectors for space applications

R. Wheeler, P. Jerram, I. Mason, P. Stocken, D. Jordan, M. Willis, M. Carmichael, A. Craig, T. Golding, A. R. Marshall

Proceedings Volume 11537, 115370J (2020) https://doi.org/10.1117/12.2572933

KEYWORDS: Diodes, Sensors, Infrared detectors, Manufacturing, Optoelectronics, Infrared radiation, Mercury cadmium telluride, Mid-IR, Gallium antimonide, Gamma radiation

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Proceedings Article | 10 July 2018 Presentation

Improving charge transfer performance within irradiated EMCCDs (Conference Presentation)

Nathan Bush, David Hall, Ross Burgon, Andrew Holland, Doug Jordan

Proceedings Volume 10709, 1070913 (2018) https://doi.org/10.1117/12.2313574

KEYWORDS: Electron multiplying charge coupled devices, Radiation effects, Silicon, Charge-coupled devices, Astronomical telescopes, Synchrotrons, Life sciences, Space telescopes, Signal attenuation

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Proceedings Article | 5 August 2016 Paper

Cryogenic irradiation of an EMCCD for the WFIRST coronagraph: preliminary performance analysis

Leon Harding, Richard Demers, Michael Hoenk, Bijan Nemati, Pavani Peddada, Nathan Bush, David Hall, Andrew Holland, Ross Burgon, Neil Murray, Jason Gow, Douglas Jordan, Darren Michaels

Proceedings Volume 9915, 99150A (2016) https://doi.org/10.1117/12.2234628

KEYWORDS: Cryogenics, Imaging systems, Electron multiplying charge coupled devices, Sensors, Coronagraphy, Temperature metrology, Signal processing, Interference (communication), Silicon, X-rays

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The Wide Field Infra-Red Survey Telescope (WFIRST) is a NASA observatory scheduled to launch in the next decade that will settle essential questions in exoplanet science. The Wide Field Instrument (WFI) offers Hubble quality imaging over a 0.28 square degree field of view and will gather NIR statistical data on exoplanets through gravitational microlensing. An on-board coronagraph will for the first time perform direct imaging and spectroscopic analysis of exoplanets with properties analogous to those within our own solar system, including cold Jupiters, mini Neptunes and potentially super Earths.

The Coronagraph Instrument (CGI) will be required to operate with low signal flux for long integration times, demanding all noise sources are kept to a minimum. The Electron Multiplication (EM)-CCD has been baselined for both the imaging and spectrograph cameras due its ability to operate with sub-electron effective read noise values with appropriate multiplication gain setting. The presence of other noise sources, however, such as thermal dark signal and Clock Induced Charge (CIC), need to be characterized and mitigated. In addition, operation within a space environment will subject the device to radiation damage that will degrade the Charge Transfer Effciency (CTE) of the device throughout the mission lifetime. Irradiation at the nominal instrument operating temperature has the potential to provide the best estimate of performance degradation that will be experienced in-flight, since the final population of silicon defects has been shown to be dependent upon the temperature at which the sensor is irradiated.

Here we present initial findings from pre- and post- cryogenic irradiation testing of the e2v CCD201-20 BI EMCCD sensor, baselined for the WFIRST coronagraph instrument. The motivation for irradiation at cryogenic temperatures is discussed with reference to previous investigations of a similar nature. The results are presented in context with those from a previous room temperature irradiation investigation that was performed on a CCD201-20 operated under the same conditions. A key conclusion is that the measured performance degradation for a given proton fluence is seen to measurably differ for the cryogenic case compared to the room temperature equivalent for the conditions of this study.

Proceedings Article | 1 August 2016 Paper

e2v CCD and CMOS sensors and systems designed for astronomical applications

Paul Jerram, Douglas Jordan, Jérôme Pratlong, Mark Robbins, Paul Jorden

Proceedings Volume 9915, 991504 (2016) https://doi.org/10.1117/12.2239429

KEYWORDS: Charge-coupled devices, CMOS sensors, Astronomy, CCD image sensors, Cameras, Imaging systems, Sensors, CCD cameras, Manufacturing, Space telescopes

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SPIE Journal Paper | 14 December 2015

Technology advancement of the CCD201-20 EMCCD for the WFIRST coronagraph instrument: sensor characterization and radiation damage

Leon Harding, Richard Demers, Michael Hoenk, Pavani Peddada, Bijan Nemati, Michael Cherng, Darren Michaels, Leo Neat, Anthony Loc, Nathan Bush, David Hall, Neil Murray, Jason P. Gow, Ross Burgon, Andrew Holland, Alice Reinheimer, Paul Jorden, Douglas Jordan

JATIS, Vol. 2, Issue 01, 011007, (December 2015) https://doi.org/10.1117/12.10.1117/1.JATIS.2.1.011007

KEYWORDS: Electron multiplying charge coupled devices, Sensors, Charge-coupled devices, Silicon, Clocks, Particles, Cameras, Coronagraphy, Planets, CMOS sensors

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Proceedings Article | 22 September 2015 Paper

Models for dynamic correlated charge collection effects in thick CCDs

Daniel Weatherill, Konstantin Stefanov, Andrew Holland, Douglas Jordan, Ivan Kotov

Proceedings Volume 9602, 96020M (2015) https://doi.org/10.1117/12.2187974

KEYWORDS: Charge-coupled devices, Neodymium, Instrument modeling, Point spread functions, Performance modeling, Astronomical imaging, Modeling, Sensors, Calibration, Precision optics

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Proceedings Article | 16 September 2015 Paper

Electron multiplication CCD detector technology advancement for the WFIRST-AFTA coronagraph

Leon Harding, Michael Cherng, Richard Demers, Michael Hoenk, Darren Michaels, Bijan Nemati, Pavani Peddada, David Hall, Neil Murray, Jason Gow, Ross Burgon, Andrew Holland, Douglas Jordan, Anthony Loc, Nathan Bush, Alice Reinheimer, Paul Jorden

Proceedings Volume 9605, 96050F (2015) https://doi.org/10.1117/12.2189927

KEYWORDS: Sensors, Electron multiplying charge coupled devices, Charge-coupled devices, Coronagraphy, Imaging systems, Silicon, Tantalum, CCD image sensors, Iterated function systems, Clocks

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Proceedings Article | 11 September 2015 Paper

The impact of radiation damage on photon counting with an EMCCD for the WFIRST-AFTA coronagraph

Nathan Bush, David Hall, Andrew Holland, Ross Burgon, Neil Murray, Jason Gow, Matthew Soman, Douglas Jordan, Richard Demers, Leon Harding, Michael Hoenk, Darren Michaels, Bijan Nemati, Pavani Peddada

Proceedings Volume 9605, 96050E (2015) https://doi.org/10.1117/12.2189818

KEYWORDS: Electron multiplying charge coupled devices, Interference (communication), Coronagraphy, Sensors, Signal processing, X-rays, Photon counting, Clocks, Exoplanets, Space operations

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Proceedings Article | 12 August 2014 Paper

e2v new CCD and CMOS technology developments for astronomical sensors

Paul Jorden, Doug Jordan, Paul Jerram, Jérôme Pratlong, Ian Swindells

Proceedings Volume 9154, 91540M (2014) https://doi.org/10.1117/12.2069423

KEYWORDS: Sensors, CCD image sensors, Astronomy, CMOS sensors, Charge-coupled devices, Cameras, Quantum efficiency, Cryogenics, Telescopes, Silicon

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Proceedings Article | 23 July 2014 Paper

Development of a 4kx4k frame transfer electron multiplying CCD for scientific applications

Jean-Luc Gach, Claude Carignan, Olivier Hernandez, Paul Jorden, Douglas Jordan, Philippe Balard, Philippe Vallée, Philippe Amram, Michel Marcelin, Benoit Epinat

Proceedings Volume 9154, 91540A (2014) https://doi.org/10.1117/12.2057021

KEYWORDS: Clocks, Charge-coupled devices, Electron multiplying charge coupled devices, Photon counting, Sensors, CCD image sensors, Telescopes, Fabry–Perot interferometers, Astronomy, Fabry–Perot interferometry

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Showing 5 of 12 publications

Conference Committee Involvement (2)

X-Ray, Optical, and Infrared Detectors for Astronomy XI

16 June 2024 | Yokohama, Japan

X-Ray, Optical, and Infrared Detectors for Astronomy X

17 July 2022 | Montréal, Québec, Canada

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