Mr. Douglas Toomey Profile

Douglas Toomey

Engineer at Mauna Kea Infrared LLC

SPIE Involvement:

Author

Publications (28)

Proceedings Article | 11 July 2018 Paper

Deconstructing turbulence and optimizing GLAO using imaka telemetry

Olivier Lai, Mark Chun, Fatima Abdurrahman, Jessica Lu, Max Service, Dora Fohring, Doug Toomey

Proceedings Volume 10703, 107036D (2018) https://doi.org/10.1117/12.2313356

KEYWORDS: Turbulence, Telescopes, Point spread functions, Matrices, Wavefront sensors, Tomography, Data modeling, Domes, Adaptive optics

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Proceedings Article | 10 July 2018 Presentation + Paper

On-sky results from the wide-field ground-layer adaptive optics demonstrator 'imaka

Mark Chun, Jessica Lu, Olivier Lai, Fatima Abdurrahman, Maxwell Service, Douglas Toomey, Dora Fohring, Christoph Baranec, Yutaka Hayano, Shin Oya

Proceedings Volume 10703, 107030J (2018) https://doi.org/10.1117/12.2311956

KEYWORDS: Image quality, Adaptive optics, Stars, Cameras, Wavefront sensors, Telescopes, Space telescopes, Point spread functions, Matrices, Optical filters

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Proceedings Article | 5 August 2016 Paper

Imaka: a ground-layer adaptive optics system on Maunakea

Mark Chun, Olivier Lai, Douglas Toomey, Jessica Lu, Max Service, Christoph Baranec, Simon Thibault, Denis Brousseau, Yutaka Hayano, Shin Oya, Shane Santi, Christopher Kingery, Keith Loss, John Gardiner, Brad Steele

Proceedings Volume 9909, 990902 (2016) https://doi.org/10.1117/12.2233208

KEYWORDS: Adaptive optics, Telescopes, Stars, Cameras, Mirrors, Interfaces, Aluminum, Wavefront sensors, Image quality, Optical components

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Proceedings Article | 22 August 2014 Paper

Extremely high-resolution ground-layer optical turbulence profile at Mauna Kea

Mark Chun, Olivier Lai, Timothy Butterley, Sean Goebel, Christoph Baranec, Douglas Toomey

Proceedings Volume 9148, 914867 (2014) https://doi.org/10.1117/12.2056864

KEYWORDS: Telescopes, Optical turbulence, Wavefronts, Stars, Turbulence, Domes, Wavefront sensors, Cameras, Adaptive optics, Matrices

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Proceedings Article | 7 August 2014 Paper

`imaka: a path-finder ground-layer adaptive optics system for the University of Hawaii 2.2-meter telescope on Maunakea

Mark Chun, Olivier Lai, Douglas Toomey, Jessica Lu, Christoph Baranec, Simon Thibault, Denis Brousseau, Hu Zhang, Yutaka Hayano, Shin Oya

Proceedings Volume 9148, 91481K (2014) https://doi.org/10.1117/12.2056917

KEYWORDS: Telescopes, Adaptive optics, Stars, Galactic astronomy, Image quality, Mirrors, Calibration, Wavefront sensors, Cameras, Optical turbulence

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Proceedings Article | 7 August 2014 Paper

Results from the Gemini NICI Planet-Finding Campaign

Beth Biller, Michael Liu, Zahed Wahhaj, Eric Nielsen, Thomas Hayward, Mark Chun, Laird Close, Christ Ftaclas, Jared Males, Markus Hartung, I. Reid, Evgenya Shkolnik, Andrew Skemer, Matthias Tecza, Niranjan Thatte, Fraser Clarke, Douglas Toomey

Proceedings Volume 9148, 91481O (2014) https://doi.org/10.1117/12.2057339

KEYWORDS: Stars, Planets, Photonic integrated circuits, Adaptive optics, Exoplanets, Gemini Observatory, Coronagraphy, Astronomy, Observatories, Imaging systems

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Proceedings Article | 13 September 2012 Paper

'Imaka: working towards very wide-field of view AO

M. Chun, O. Lai, J-C. Cuillandre, H. Richer, D. Toomey, D. Salmon, R. Carlberg, D. Andersen, D. Burgarella, K. Ho, J. Pazder, E. Bertin

Proceedings Volume 8447, 84471G (2012) https://doi.org/10.1117/12.925530

KEYWORDS: Adaptive optics, Telescopes, Optical turbulence, Image quality, Wavefront sensors, Monte Carlo methods, Stars, Optical design, Astronomy, Relays

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Proceedings Article | 29 July 2010 Paper

The Gemini NICI Planet-Finding Campaign

Michael Liu, Zahed Wahhaj, Beth Biller, Eric Nielsen, Mark Chun, Laird Close, Christ Ftaclas, Markus Hartung, Thomas Hayward, Fraser Clarke, I. Neill Reid, Evgenya Shkolnik, Mathias Tecza, Niranjan Thatte, Silvia Alencar, Pawel Artymowicz, Alan Boss, Adam Burrows, Elisabethe de Gouveia Dal Pino, Jane Gregorio-Hetem, Shigeru Ida, Marc Kuchner, Douglas Lin, Douglas Toomey

Proceedings Volume 7736, 77361K (2010) https://doi.org/10.1117/12.858358

KEYWORDS: Stars, Planets, Adaptive optics, Exoplanets, Imaging systems, Telescopes, Monte Carlo methods, Gemini Observatory, Point spread functions, Space telescopes

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Proceedings Article | 17 July 2008 Paper

Observing strategies for the NICI campaign to directly image extrasolar planets

Beth Biller, Étienne Artigau, Zahed Wahhaj, Markus Hartung, Michael Liu, Laird Close, Mark Chun, Christ Ftaclas, Douglas Toomey, Thomas Hayward

Proceedings Volume 7015, 70156Q (2008) https://doi.org/10.1117/12.789565

KEYWORDS: Planets, Point spread functions, K band, Methane, Stars, Coronagraphy, Absorption, Exoplanets, Imaging systems, Gemini Observatory

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Proceedings Article | 10 July 2008 Paper

Performance of the near-infrared coronagraphic imager on Gemini-South

Mark Chun, Doug Toomey, Zahed Wahhaj, Beth Biller, Etienne Artigau, Tom Hayward, Mike Liu, Laird Close, Markus Hartung, Francois Rigaut, Christ Ftaclas

Proceedings Volume 7015, 70151V (2008) https://doi.org/10.1117/12.787683

KEYWORDS: Coronagraphy, Imaging systems, Adaptive optics, Calcium, Optical instrument design, Planets, Gemini Observatory, Telescopes

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Proceedings Article | 9 July 2008 Paper

NICI: combining coronagraphy, ADI, and SDI

Étienne Artigau, Beth Biller, Zahed Wahhaj, Markus Hartung, Thomas Hayward, Laird Close, Mark Chun, Michael Liu, Gelys Trancho, François Rigaut, Douglas Toomey, Christ Ftaclas

Proceedings Volume 7014, 70141Z (2008) https://doi.org/10.1117/12.788390

KEYWORDS: Point spread functions, Coronagraphy, Imaging systems, Image filtering, Signal to noise ratio, Adaptive optics, Digital filtering, Speckle pattern, Interference (communication), Gemini Observatory

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Proceedings Article | 7 March 2003 Paper

ASTROCAM: an Offner re-imaging 1024 x 1024 InSb camera for near-infrared astrometry on the USNO 1.55 m telescope

Jacqueline Fischer, Frederick Vrba, Douglas Toomey, Bob Lucke, Shu-i Wang, Arne Henden, Joseph Robichaud, Peter Onaka, Brian Hicks, Frederick Harris, Werner Stahlberger, Kris Kosakowski, Charles Dudley, Kenneth Johnston

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461033

KEYWORDS: Telescopes, Mirrors, Digital signal processing, Electronics, Stars, Optical filters, Sensors, Aluminum, Distortion, Imaging systems

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Proceedings Article | 7 March 2003 Paper

The Redstar3 array controller: embedding Linux and PCs as a DSP replacement

Peter Onaka, Charles Lockhart, Alan Tokunaga, John Rayner, Douglas Toomey, Gregory Ching

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461186

KEYWORDS: Digital signal processing, Data storage, Electronics, Interfaces, Human-machine interfaces, Control systems, Telecommunications, Infrared radiation, Control systems design, Data processing

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Proceedings Article | 7 March 2003 Paper

Near infrared coronagraphic imager for Gemini South

Douglas Toomey, Christ Ftaclas

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461099

KEYWORDS: Adaptive optics, Coronagraphy, Imaging systems, Gemini Observatory, Cameras, Stars, Planetary systems, Relays, Mirrors, Planets

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Proceedings Article | 7 July 2000 Paper

Curvature-based adaptive optics for the NASA IRTF

Daniel O'Connor, J. Elon Graves, Malcolm Northcott, Douglas Toomey, Robert Joseph, J. Shelton

Proceedings Volume 4007, (2000) https://doi.org/10.1117/12.390295

KEYWORDS: Adaptive optics, Relays, Wavefront sensors, Mirrors, Stars, Telescopes, Image segmentation, Infrared telescopes, Astronomy, Infrared radiation

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Proceedings Article | 21 August 1998 Paper

CoCo: an experiment in infrared coronagraphy at the IRTF

Douglas Toomey, Christ Ftaclas, Robert Brown, David Trilling

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317214

KEYWORDS: Coronagraphy, Telescopes, Stars, Cameras, Infrared radiation, Infrared telescopes, Diffraction, Light scattering, Infrared cameras, Methane

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Proceedings Article | 21 August 1998 Paper

Redline multiple-array controller for SpeX

Peter Onaka, Anthony Denault, Darryl Watanabe, Gregory Ching, Douglas Toomey, John Rayner

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317256

KEYWORDS: Digital signal processing, Computing systems, Electronics, Control systems, Imaging systems, Power supplies, Spectrographs, Signal processing, Imaging spectroscopy, Imaging arrays

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Proceedings Article | 21 August 1998 Paper

SpeX: a medium-resolution IR spectrograph for IRTF

John Rayner, Douglas Toomey, Peter Onaka, Anthony Denault, Werner Stahlberger, Darryl Watanabe, Shu-i Wang

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317273

KEYWORDS: Spectrographs, Digital signal processing, Prisms, Sensors, Cameras, Control systems, Mirrors, Telescopes, Infrared radiation, Electronics

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