Prof. David Lafrenière Profile

Prof. David Lafrenière

Postdoc Researcher at Univ McGill

SPIE Involvement:

Author

Publications (30)

Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

NIRPS near-infrared spectrograph: AITV phase at ESO3.6m/La Silla

Lison Malo, Frédérique Baron, Anne-Sophie Poulin-Girard, Philippe Vallée, Jonathan St-Antoine, Denis Brousseau, Hugues Auger, Vladimir Reshetov, François Wildi, Michaël Sordet, Étienne Artigau, René Doyon, Simon Thibault, François Bouchy, Neil Cook, Yolanda Frensch, Gaspare Lo Curto, Gérard Zins, Danuta Sosnowska, Ivan Wevers, Dan Kerley, Guillaume Allain, Romain Allart, Norbert Hubin, Charles Cadieux, Andres Carmona, Zalpha Challita, Nolan Grieves, Olivier Hernandez, Thomas Vandal, Nicolas Blind, Lucile Mignon, Louise Nielsen, Francesco Pepe, Xavier Dumusque, Christophe Lovis, Bruno L. Canto Martins, José Renan de Medeiros, Xavier Delfosse, Nuno Santos, Jonay González-Hernández, Rafael Rebolo, Gregg Wade, Manuel Abreu, Susana Barros, Luc Bazinet, Isabelle Boisse, Xavier Bonfils, Vincent Bourrier, Sébastien Bovay, Christopher Broeg, Vincent Bruniquel, Alexandre Cabral, Yann Carteret, Bruno Chazelas, Ryan Cloutier, João Coelho, Marion Cointepas, Uriel Conod, Nicolas Cowan, Eduardo Cristo, Joao Gomes da Silva, Laurie Dauplaise, Roseane de Lima Gomes, Elisa Delgado-Mena, David Ehrenreich, Joao Faria, Pedro Figueira, Thierry Forveille, Jonathan Gagne, Frederic Genest, Ludovic Genolet, Félix Gracia Témich, Melissa Hobson, Jens Hoeijmakers, Vigneshwaran Krishnamurthy, David Lafreniere, Pierrot Lamontagne, Pierre Larue, Henry Leath, Izan Leão, Olivia Lim, Allan Martins, Claudio Melo, Yuri Messias, Leslie Moranta, Christoph Mordasini, Khaled Al Moulla, Dany Mounzer, Alexandrine L’Heureux, Nicola Nari, Ares Osborn, Lena Parc, Luca Pasquini, Vera Passegger, Stefan Pelletier, Celine Peroux, Caroline Piaulet, Mykhaylo Plotnykov, José Luis Rasilla, Mirsad Sarajlic, Alex Segovia, Julia Seidel, Damien Segransan, Ana Rita Costa Silva, Avidaan Srivastava, Atanas Stefanov, Alejandro Suárez Mascareño, Marcio Teixeira, Stephane Udry, Diana Valencia, Valentina Vaulato, Joost Wardenier, Bachar Wehbé, Drew Weisserman, Benjamin Kung, Anne Boucher, Robin Schnell, Armin Silber, Ivo Saviane, Emanuela Pompei, Peter Sinclaire

Proceedings Volume 13096, 1309646 (2024) https://doi.org/10.1117/12.3020168

KEYWORDS: Vacuum, Spectrographs, Thermal stability, Sensors, Optical components, Lanthanum, Equipment, Cryogenics, Design, Control systems

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Proceedings Article | 18 July 2024 Presentation + Paper

Presentation + Paper

NIRPS first light and early science: breaking the 1 m/s RV precision barrier at infrared wavelengths

Étienne Artigau, François Bouchy, René Doyon, Frédérique Baron, Lison Malo, François Wildi, Franceso Pepe, Neil Cook, Simon Thibault, Vladimir Reshetov, Xavier Dumusque, Christophe Lovis, Danuta Sosnowska, Bruno Canto Martins, Jose Renan De Medeiros, Xavier Delfosse, Nuno Santos, Rafael Rebolo, Manuel Abreu, Guillaume Allain, Romain Allart, Hugues Auger, Susana Barros, Luc Bazinet, Nicolas Blind, Isabelle Boisse, Xavier Bonfils, Vincent Bourrier, Sébastien Bovay, Christopher Broeg, Denis Brousseau, Vincent Bruniquel, Alexandre Cabral, Charles Cadieux, Andres Carmona, Yann Carteret, Zalpha Challita, Bruno Chazelas, Ryan Cloutier, João Coelho, Marion Cointepas, Uriel Conod, Nicolas Cowan, Eduardo Cristo, João Gomes da Silva, Laurie Dauplaise, Roseane Lima Gomes, Elisa Delgado-Mena, David Ehrenreich, João Faria, Pedro Figueira, Thierry Forveille, Yolanda Frensch, Jonathan Gagné, Frédéric Genest, Ludovic Genolet, Jonay González Hernández, Felix Gracia Temich, Nolan Grieves, Olivier Hernandez, Melissa Hobson, Jens Hoeijmakers, Dan Kerley, Vigneshwaran Krishnamurthy, David Lafrenière, Pierrot Lamontagne, Pierre Larue, Henry Leaf, Izan Leão, Olivia Lim, Gaspare Lo Curto, Allan Martins, Claudio Melo, Yuri Messias, Lucile Mignon, Leslie Moranta, Christoph Mordasini, Khaled Al Moulla, Dany Mounzer, Alexandrine L'Heureux, Nicola Nari, Louise Nielsen, Ares Osborn, Lena Parc, Luca Pasquini, Vera Passegger, Stefan Pelletier, Céline Peroux, Caroline Piaulet, Mykhaylo Plotnykov, Anne-Sophie Poulin-Girard, José Luis Rasilla, Jonathan Saint-Antoine, Mirsad Sarajic, Alex Segovia, Julia Seidel, Damien Ségransan, Ana Rita Silva, Avidaan Srivastava, Atanas Stefanov, Alejandro Suárez Mascareño, Michael Sordet, Márcio Teixeira, Sféphane Udry, Diana Valencia, Philippe Vallée, Thomas Vandal, Valentina Vaulato, Gregg Wade, Joost Wardenier, Bachar Wehbé, Drew Weisserman, Ivan Wevers, Gérard Zins

Proceedings Volume 13096, 130960C (2024) https://doi.org/10.1117/12.3018994

KEYWORDS: Planets, Exoplanets, Adaptive optics, Spectrographs, Calibration, Equipment, Telescopes, Infrared astronomy

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Proceedings Article | 5 October 2023 Presentation + Paper

Presentation + Paper

The development of HISPEC for Keck and MODHIS for TMT: science cases and predicted sensitivities

Quinn Konopacky, Ashley Baker, Dimitri Mawet, Michael Fitzgerald, Nemanja Jovanovic, Charles Beichman, Garreth Ruane, Rob Bertz, Hiroshi Terada, Richard Dekany, Larry Lingvay, Marc Kassis, David Anderson, Motohide Tamura, Björn Benneke, Thomas Beatty, Tuan Do, Shogo Nishiyama, Peter Plavchan, Jason Wang, Ji Wang, Adam Burgasser, Jean-Baptiste Ruffio, Huihao Zhang, Aaron Brown, Jason Fucik, Aidan Gibbs, Rose Gibson, Sam Halverson, Christopher Johnson, Sonia Karkar, Takayuki Kotani, Evan Kress, Stephanie Leifer, Kenneth Magnone, Jerome Maire, Rishi Pahuja, Michael Porter, Mitsuko Roberts, Ben Sappey, Jim Thorne, Eric Wang, Etienne Artigau, Geoffrey Blake, Gabriela Canalizo, Guo Chen, Greg Doppmann, René Doyon, Courtney Dressing, Min Fang, Thomas Greene, Greg Herczeg, Lynne Hillenbrand, Andrew Howard, Stephen Kane, Tiffany Kataria, Eliza Kempton, Heather Knutson, David Lafrenière, Chao Liu, Stanimir Metchev, Max Millar-Blanchaer, Norio Narita, Gajendra Pandey, S.P. Rajaguru, Paul Robertson, Colette Salyk, Bun'ei Sato, Evertt Schlawin, Sujan Sengupta, Thirupathi Sivarani, Warren Skidmore, Gautam Vasisht, Chikako Yasui, Hui Zhang

Proceedings Volume 12680, 1268007 (2023) https://doi.org/10.1117/12.2681522

KEYWORDS: Planets, Stars, Exoplanets, Spectrographs, Atmospheres, Spectroscopy, Telescopes

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Proceedings Article | 14 December 2020 Presentation + Paper

Presentation + Paper

The James Webb Space Telescope aperture masking interferometer

A. Soulain, A. Sivaramakrishnan, P. Tuthill, D. Thatte, K. Volk, R. Cooper, L. Albert, É. Artigau, N. Cook, R. Doyon, D. Johnstone, D. Lafrenière, A. Martel

Proceedings Volume 11446, 1144611 (2020) https://doi.org/10.1117/12.2560804

KEYWORDS: James Webb Space Telescope, Interferometers, Infrared telescopes, Observatories, Stars, Infrared radiation, Mirrors, Observational astronomy, Imaging systems, Spectrographs

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Proceedings Article | 13 December 2020 Presentation

Presentation

NIRPS: status updates and project overview

Étienne Artigau, François Bouchy, René Doyon, Claudio Melo, Xavier Delfosse, François Wildi, Christophe Lovis, Pedro Figueira, Bruno Canto Martins, Jonay González Hernández, Simon Thibault, Vladimir Reshetov, Francesco Pepe, Nuno Santos, José Renan de Medeiros, Rafael Rebolo, Neil Cook, Nicolas Blind, Isabelle Boisse, Denis Brousseau, Uriel Conod, David Lafrenière, Izan Leão, Lison Malo, Mathieu Ouellet, Anne-Sophie Poulin-Girard, Stéphane Udry, Philippe Vallée, Andrew Cumming, Michael Sordet, Allan De Medeiros

Proceedings Volume 11447, 114471K (2020) https://doi.org/10.1117/12.2561090

KEYWORDS: Spectrographs, Telescopes, Lanthanum, Planets, Spectroscopes, Exoplanets, Aerospace engineering, Space operations, James Webb Space Telescope

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Proceedings Article | 16 July 2018 Paper

Paper

A precursor mission to high contrast imaging balloon system

Olivier Côté, Guillaume Allain, Denis Brousseau, Marie-Pier Lord, Samy Ouahbi, Mireille Ouellet, Deven Patel, Simon Thibault, Cédric Vallée, Ruslan Belikov, Eduardo Bendek, Célia Blain, Collin Bradley, Olivier Daigle, Chris de Jong, David Doelman, René Doyon, Frédéric Grandmont, Michael Helmbrecht, Matthew Kenworthy, David Lafrenière, Frank Marchis, Christian Marois, Steeve Montminy, Frans Snik, Gautam Vasisht, Jean-Pierre Véran, Philippe Vincent

Proceedings Volume 10702, 1070248 (2018) https://doi.org/10.1117/12.2314071

KEYWORDS: Telescopes, Imaging systems, Coronagraphy, Cameras, Space telescopes, Wavefront sensors, Stars, Adaptive optics, Sensors, Wavefronts

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Proceedings Article | 29 July 2016 Paper

Paper

Canadian contributions studies for the WFIRST instruments

J.-F. Lavigne, N. Rowlands, F. Grandmont, D. Lafrenière, C. Marois, O. Daigle, S. Thibault, D. Schade, É. Artigau, D. Brousseau, J. Maire, G. Cretot-Richert, M.-È. Ducharme, L. Levesque, D. Laurin, J. Dupuis

Proceedings Volume 9904, 990413 (2016) https://doi.org/10.1117/12.2232641

KEYWORDS: Electron multiplying charge coupled devices, Image processing, Planets, Sensors, Calibration, Coronagraphy, Stars, Iterated function systems, Cameras, Mirrors

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Proceedings Article | 28 August 2014 Paper

Paper

NIRISS aperture masking interferometry: an overview of science opportunities

Étienne Artigau, Anand Sivaramakrishnan, Alexandra Greenbaum, René Doyon, Paul Goudfrooij, Alex Fullerton, David Lafrenière, Kevin Volk, Loïc Albert, André Martel, K. E. Saavik Ford, Barry McKernan

Proceedings Volume 9143, 914340 (2014) https://doi.org/10.1117/12.2055191

KEYWORDS: Stars, Planets, James Webb Space Telescope, Optical filters, Gemini Planet Imager, Point spread functions, Interferometry, Exoplanets, Galactic astronomy, Bandpass filters

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Proceedings Article | 8 July 2014 Paper

Paper

Gemini Planet Imager observational calibrations I: Overview of the GPI data reduction pipeline

Marshall Perrin, Jérôme Maire, Patrick Ingraham, Dmitry Savransky, Max Millar-Blanchaer, Schuyler Wolff, Jean-Baptiste Ruffio, Jason Wang, Zachary Draper, Naru Sadakuni, Christian Marois, Abhijith Rajan, Michael Fitzgerald, Bruce Macintosh, James Graham, René Doyon, James Larkin, Jeffrey Chilcote, Stephen Goodsell, David Palmer, Kathleen Labrie, Mathilde Beaulieu, Robert De Rosa, Alexandra Greenbaum, Markus Hartung, Pascale Hibon, Quinn Konopacky, David Lafreniere, Jean-Francois Lavigne, Franck Marchis, Jenny Patience, Laurent Pueyo, Fredrik Rantakyrö, Rémi Soummer, Anand Sivaramakrishnan, Sandrine Thomas, Kimberly Ward-Duong, Sloane Wiktorowicz

Proceedings Volume 9147, 91473J (2014) https://doi.org/10.1117/12.2055246

KEYWORDS: Gemini Planet Imager, Calibration, Point spread functions, Gemini Observatory, Polarimetry, Iterated function systems, Astronomy, Electroluminescent displays, Spectrographs, Software development

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Proceedings Article | 8 July 2014 Paper

Paper

High-precision polarimetry at the Mont-Mégantic Observatory with the new polarimeter POMM

Pierre Bastien, Olivier Hernandez, Loïc Albert, Étienne Artigau, René Doyon, Laurent Drissen, David Lafrenière, Antony Moffat, Nicole St-Louis

Proceedings Volume 9147, 91471S (2014) https://doi.org/10.1117/12.2056789

KEYWORDS: Stars, Polarization, Polarimetry, Planets, Light scattering, Exoplanets, Scattering, Jupiter, Comets, Observatories

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Proceedings Article | 24 September 2012 Paper

Paper

SPIRou @ CFHT: data reduction software and simulation tools

Étienne Artigau, François Bouchy, Xavier Delfosse, Xavier Bonfils, Jean-François Donati, Pedro Figueira, Karun Thanjavur, David Lafrenière, René Doyon, Christian Surace, Claire Moutou, Isabelle Boisse, Leslie Saddlemyer, David Loop, Driss Kouach, Francesco Pepe, Christophe Lovis, Olivier Hernandez, Shiang-Yu Wang

Proceedings Volume 8451, 84513I (2012) https://doi.org/10.1117/12.926334

KEYWORDS: Sensors, Calibration, Absorption, Device simulation, Error analysis, Image segmentation, Telescopes, Polarization, Zemax, Spectrographs

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Proceedings Article | 21 September 2012 Paper

Paper

Non-redundant Aperture Masking Interferometry (AMI) and segment phasing with JWST-NIRISS

Anand Sivaramakrishnan, David Lafrenière, K. E. Saavik Ford, Barry McKernan, Anthony Cheetham, Alexandra Greenbaum, Peter Tuthill, James Lloyd, Michael Ireland, René Doyon, Mathilde Beaulieu, André Martel, Anton Koekemoer, Frantz Martinache, Peter Teuben

Proceedings Volume 8442, 84422S (2012) https://doi.org/10.1117/12.925565

KEYWORDS: James Webb Space Telescope, Visibility, Interferometry, Space telescopes, Sensors, Calibration, Telescopes, Mirrors, Wavefronts, Image segmentation

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The Aperture Masked Interferometry (AMI) mode on JWST-NIRISS is implemented as a 7-hole, 15% throughput, non-redundant mask (NRM) that operates with 5-8% bandwidth filters at 3.8, 4.3, and 4.8 microns. We present refined estimates of AMI's expected point-source contrast, using realizations of noise matched to JWST pointing requirements, NIRISS detector noise, and Rev-V JWST wavefront error models for the telescope and instrument. We describe our point-source binary data reduction algorithm, which we use as a standardized method to compare different observational strategies. For a 7.5 magnitude star we report a 10-a detection at between 8.7 and 9.2 magnitudes of contrast between 100 mas to 400 mas respectively, using closure phases and squared visibilities in the absence of bad pixels, but with various other noise sources. With 3% of the pixels unusable, the expected contrast drops by about 0.5 magnitudes. AMI should be able to reach targets as bright as M=5. There will be significant overlap between Gemini-GPI and ESO-SPHERE targets and AMI's search space, and a complementarity with NIRCam's coronagraph. We also illustrate synthesis imaging with AMI, demonstrating an imaging dynamic range of 25 at 100 mas scales. We tailor existing radio interferometric methods to retrieve a faint bar across a bright nucleus, and explain the similarities to synthesis imaging at radio wavelengths. Modest contrast observations of dusty accretion flows around AGNs will be feasible for NIRISS AMI. We show our early results of image-plane deconvolution as well. Finally, we report progress on an NRM-inspired approach to mitigate mission-level risk associated with JWST's specialized wavefront sensing hardware. By combining narrow band and medium band Nyquist-sampled images taken with a science camera we can sense JWST primary mirror segment tip-tilt to lOmas, and piston to a few nm. We can sense inter-segment piston errors of up to 5 coherence lengths of the broadest bandpass filter used ( 250-500 0m depending on the filters). Our approach scales well with an increasing number of segments, which makes it relevant for future segmented-primary space missions.

Proceedings Article | 21 September 2012 Paper

Paper

The JWST Fine Guidance Sensor (FGS) and Near-Infrared Imager and Slitless Spectrograph (NIRISS)

René Doyon, John Hutchings, Mathilde Beaulieu, Loic Albert, David Lafrenière, Chris Willott, Driss Touahri, Neil Rowlands, Micheal Maszkiewicz, Alex Fullerton, Kevin Volk, André Martel, Pierre Chayer, Anand Sivaramakrishnan, Roberto Abraham, Laura Ferrarese, Ray Jayawardhana, Doug Johnstone, Michael Meyer, Judith Pipher, Marcin Sawicki

Proceedings Volume 8442, 84422R (2012) https://doi.org/10.1117/12.926578

KEYWORDS: Sensors, Spectroscopy, Imaging spectroscopy, Stars, Exoplanets, James Webb Space Telescope, Atmospheric modeling, Imaging systems, Point spread functions, Spectrographs

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Proceedings Article | 13 September 2012 Paper

Paper

Preserving the photometric integrity of companions in high-contrast imaging observations using locally optimized combination of images

Jérôme Maire, Jonathan Gagné, David Lafrenière, René Doyon, James Graham, Jean-Pierre Véran, Lisa Poyneer

Proceedings Volume 8447, 844760 (2012) https://doi.org/10.1117/12.926247

KEYWORDS: Point spread functions, Speckle pattern, Speckle, Stars, Photometry, Planets, Adaptive optics, Imaging spectroscopy, Gemini Planet Imager, Exoplanets

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Proceedings Article | 11 August 2010 Paper

Paper

Planetary system and star formation science with non-redundant masking on JWST

Anand Sivaramakrishnan, David Lafrenière, Peter Tuthill, Michael Ireland, James Lloyd, Frantz Martinache, Russell Makidon, Rémi Soummer, René Doyon, Mathilde Beaulieu, Sébastien Parmentier, Charles Beichman

Proceedings Volume 7731, 77313W (2010) https://doi.org/10.1117/12.858161

KEYWORDS: James Webb Space Telescope, Stars, Space telescopes, Visibility, Sensors, Planets, Telescopes, Calibration, Point spread functions, Wavefronts

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Proceedings Article | 5 August 2010 Paper

Paper

The JWST tunable filter imager (TFI)

R. Doyon, J. Hutchings, N. Rowlands, C. Evans, E. Greenberg, C. Haley, A. Scott, D. Touahri, M. Beaulieu, D. Lafrenière, R. Abraham, E. Barton, P. Chayer, L. Ferrarese, A. Fullerton, R. Jayawardhana, D. Johnstone, A. Martel, A. W. M. R. Meyer, J. Pipher, K. Saad, M. Sawicki, A. Sivaramakrishnan, K. Volk

Proceedings Volume 7731, 77310F (2010) https://doi.org/10.1117/12.857382

KEYWORDS: Fabry–Perot interferometers, James Webb Space Telescope, Coronagraphy, Coating, Sensors, Exoplanets, Imaging systems, Tunable filters, Spectral resolution, Space telescopes

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Proceedings Article | 21 July 2010 Paper

Paper

The science calibration system for the TMT NFIRAOS and client instruments: requirements and design studies

Dae-Sik Moon, Luc Simard, Dafna Sussman, David Crampton, Max Millar-Blanchaer, Raymond Carlberg, Vainatey Kulkarni, Muhammad Khan, Evgeny Gorelik, Andy Kim, Mark Roxas, Jeffrey Osborne, Glen Herriot, James Larkin, David LaFrenière

Proceedings Volume 7735, 77355N (2010) https://doi.org/10.1117/12.857469

KEYWORDS: Calibration, Integrating spheres, Telescopes, Mirrors, Optical design, Adaptive optics, Light sources, Infrared telescopes, Device simulation, Thirty Meter Telescope

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Proceedings Article | 16 July 2010 Paper

Paper

Data reduction pipeline for the Gemini Planet Imager

Jérôme Maire, Marshall Perrin, René Doyon, Etienne Artigau, Jennifer Dunn, Donald Gavel, James Graham, David Lafrenière, James Larkin, Jean-François Lavigne, Bruce Macintosh, Christian Marois, Ben Oppenheimer, David Palmer, Lisa Poyneer, Simon Thibault, Jean-Pierre Véran

Proceedings Volume 7735, 773531 (2010) https://doi.org/10.1117/12.858028

KEYWORDS: Gemini Planet Imager, Calibration, Stars, Iterated function systems, Polarimetry, Gemini Observatory, Polarization, Adaptive optics, Speckle, Spectroscopes

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Proceedings Article | 12 July 2008 Paper

Paper

Performance results of the TFI coronagraphic occulting mask prototypes

Mathilde Beaulieu, René Doyon, David Lafrenière

Proceedings Volume 7010, 70103J (2008) https://doi.org/10.1117/12.787991

KEYWORDS: Point spread functions, Coronagraphy, Halftones, Imaging systems, Prototyping, Signal attenuation, James Webb Space Telescope, Sensors, Mirrors, Solids

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Proceedings Article | 30 June 2006 Paper

Paper

Simultaneous spectral differential imaging with a focal plane holographic diffuser

David Lafrenière, René Doyon, Étienne Artigau, Christian Marois, Mathilde Beaulieu, Daniel Nadeau, René Racine

Proceedings Volume 6269, 62692H (2006) https://doi.org/10.1117/12.671968

KEYWORDS: Point spread functions, Signal attenuation, Speckle, Adaptive optics, Diffusers, Convolution, Holography, Cameras, Telescopes, Wavefronts

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Proceedings Article | 29 June 2006 Paper

Paper

An infrared integral field spectrograph specialized for speckle suppression and the direct detection of extrasolar planets

Jean-François Lavigne, René Doyon, Simon Thibault, David Lafrenière

Proceedings Volume 6269, 62693X (2006) https://doi.org/10.1117/12.671578

KEYWORDS: Point spread functions, Speckle, Iterated function systems, Sensors, Signal attenuation, Planets, Contamination, Cameras, Microlens, Microlens array

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Proceedings Article | 28 June 2006 Paper

Paper

OSIRIS: a diffraction limited integral field spectrograph for Keck

James Larkin, Matthew Barczys, Alfred Krabbe, Sean Adkins, Ted Aliado, Paola Amico, George Brims, Randy Campbell, John Canfield, Thomas Gasaway, Allan Honey, Christof Iserlohe, Christopher Johnson, Evan Kress, David LaFreniere, James Lyke, Ken Magnone, Nick Magnone, Michael McElwain, Juleen Moon, Andreas Quirrenbach, Gunnar Skulason, Inseok Song, Michael Spencer, Jason Weiss, Shelley Wright

Proceedings Volume 6269, 62691A (2006) https://doi.org/10.1117/12.672061

KEYWORDS: Spectrographs, Diffraction, Sensors, Image quality, Adaptive optics, Wavefronts, Cameras, Stars, Galactic astronomy, Astronomy

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Proceedings Article | 12 October 2004 Paper

Paper

High-contrast imaging performance of the JWST fine guider sensor tunable filter coronagraph

Rene Doyon, David LaFreniere, Neil Rowlands, Clinton Evans, Richard Murowinski, John Hutchings, Russ Alexander

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.551852

KEYWORDS: Coronagraphy, James Webb Space Telescope, Point spread functions, Speckle, Tunable filters, Wavefronts, Sensors, Exoplanets, Planets, Imaging spectroscopy

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Proceedings Article | 30 September 2004 Paper

Paper

Multiwavelength imaging concepts for exoplanet detection

David Lafreniere, Rene Doyon, Rene Racine, Christian Marois, Daniel Nadeau

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551798

KEYWORDS: Point spread functions, Microlens array, Microlens, Sensors, Signal attenuation, Atmospheric optics, Adaptive optics, Speckle, Exoplanetary science, Calibration

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Proceedings Article | 30 September 2004 Paper

Paper

Data reduction pipeline for OSIRIS, the new NIR diffraction-limited imaging field spectrograph for the Keck adaptive optics system

Alfred Krabbe, Tom Gasaway, Inseok Song, Christof Iserlohe, Jason Weiss, James Larkin, Matthew Barczys, David Lafreniere

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.552592

KEYWORDS: Calibration, Sensors, Spectrographs, Adaptive optics, Imaging systems, Point spread functions, Near infrared, Astronomy, Diffraction, Image sensors

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Proceedings Article | 7 July 2004 Paper

Paper

Detecting and characterizing exoplanets with multicolor detector assemblies

Rene Doyon, David Lafreniere, Christian Marois, Rene Racine, Daniel Nadeau

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566102

KEYWORDS: Planets, Point spread functions, Sensors, Adaptive optics, Cameras, Telescopes, Coronagraphy, Exoplanets, Stars, Microlens

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Proceedings Article | 7 March 2003 Paper

Paper

OSIRIS: an infrared integral field spectrograph for the Keck adaptive optics system

James Larkin, Andreas Quirrenbach, Alfred Krabbe, Ted Aliado, Matthew Barczys, George Brims, John Canfield, Thomas Gasaway, David LaFreniere, Nick Magnone, Gunnar Skulason, Michael Spencer, David Sprayberry, Jason Weiss

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461775

KEYWORDS: Adaptive optics, Spectrographs, Sensors, Infrared radiation, Cameras, Infrared spectroscopy, Spectral resolution, Mirrors, Collimators, Optical filters

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Proceedings Article | 7 March 2003 Paper

Paper

Integral-field spectroscopy at the resolution limit of large telescopes: the science program of OSIRIS at Keck

Andreas Quirrenbach, James Larkin, Alfred Krabbe, Matthew Barczys, David LaFreniere

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461445

KEYWORDS: Galactic astronomy, Stars, Adaptive optics, Infrared radiation, Spectroscopy, Electroluminescent displays, Spectrographs, Spatial resolution, Infrared spectroscopy, Planets

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Proceedings Article | 19 December 2002 Paper

Paper

Data reduction pipeline for OSIRIS, the new NIR diffraction limited imaging field spectrometer for the Keck adaptive optics system

Alfred Krabbe, Thomas Gasaway, Jason Weiss, James Larkin, Matthew Barczys, Andreas Quirrenbach, David LaFreniere

Proceedings Volume 4847, (2002) https://doi.org/10.1117/12.461106

KEYWORDS: Diffraction, Adaptive optics, Near infrared, Astronomy, Calibration, Imaging systems, Spectroscopy, Data archive systems, Data conversion, Telescopes

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Proceedings Article | 13 December 2002 Paper

Paper

Software architecture for OSIRIS: an infrared integral-field spectrograph for the Keck adaptive optics system

Jason Weiss, Matthew Barczys, James Larkin, David LaFreniere, Andreas Quirrenbach, Thomas Gasaway, Alfred Krabbe

Proceedings Volume 4848, (2002) https://doi.org/10.1117/12.461548

KEYWORDS: Adaptive optics, Sensors, Java, Human-machine interfaces, Control systems, Spectrographs, Infrared spectroscopy, Infrared radiation, Data modeling, Astronomy

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Showing 5 of 30 publications

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