Dr. Mitchell Troy Profile

Dr. Mitchell Troy

Adaptive Optics Lead at Jet Propulsion Lab

SPIE Involvement:

Conference Program Committee | Author

Publications (71)

Proceedings Article | 21 December 2020 Presentation + Paper

Experimental data improves prediction of Thirty Meter Telescope segment warping harness correction

Carey Weisberg, Mark Colavita, Glen Cole, Carl Nissly, John Rogers, Matthias Schoeck, Byoung-Joon Seo, Mitchell Troy

Proceedings Volume 11450, 114500W (2020) https://doi.org/10.1117/12.2563129

KEYWORDS: Thirty Meter Telescope, Image segmentation, Prototyping, Mirrors, Keck Observatory, Computer simulations

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Proceedings Article | 10 July 2018 Presentation + Paper

Optical performance prediction of the Thirty Meter Telescope after initial alignment using optical modeling

Byoung-Joon Seo, Carl Nissly, Mark Colavita, Mitchell Troy, Scott Roberts, John Rogers

Proceedings Volume 10705, 107050T (2018) https://doi.org/10.1117/12.2314351

KEYWORDS: Telescopes, Distortion, Optical alignment, Error analysis, Thirty Meter Telescope, Performance modeling

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Proceedings Article | 10 July 2018 Presentation + Paper

Verifying Interfaces and generating interface control documents for the alignment and phasing subsystem of the Thirty Meter Telescope from a system model in SysML

Sebastian J. Herzig, Robert Karban, Gary Brack, Scott Michaels, Frank Dekens, Mitchell Troy

Proceedings Volume 10705, 107050V (2018) https://doi.org/10.1117/12.2310184

KEYWORDS: Systems modeling, Interfaces, Thirty Meter Telescope, Control systems, Databases, Systems engineering, Cameras, Mirrors, Model-based design, Astronomy

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Proceedings Article | 6 July 2018 Presentation + Paper

Interferometric characterization of Keck segment edge errors

Mitchell Troy, Gary Chanan, Mark Colavita, Stephen Martinek

Proceedings Volume 10700, 107000M (2018) https://doi.org/10.1117/12.2314568

KEYWORDS: Ion beam finishing, Phase measurement, Interferometers, Telescopes, Segmented mirrors

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Proceedings Article | 6 July 2018 Presentation + Paper

Chromatic effects in narrowband phasing of the Keck Telescope segments: theory and numerical simulations

Gary Chanan, Mitchell Troy

Proceedings Volume 10700, 107001E (2018) https://doi.org/10.1117/12.2310157

KEYWORDS: Mirrors, Ion beam finishing, Interferometry, Telescopes, Ion beams, Phase measurement, Phase shifts, Astronomy

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Proceedings Article | 27 July 2016 Paper

The alignment and phasing system for the Thirty Meter Telescope: risk mitigation and status update

Mitchell Troy, Gary Chanan, Scott Michaels, Frank Dekens, Randy Hein, Sebastian Herzig, Robert Karban, Carl Nissly, Jennifer Roberts, Michael Rud, Byoung-Joon Seo

Proceedings Volume 9906, 99066A (2016) https://doi.org/10.1117/12.2231913

KEYWORDS: Telescopes, Wavefronts, Control systems, Mirrors, Cameras, Thirty Meter Telescope, Image segmentation, Stars, Charge-coupled devices, Sensors

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Proceedings Article | 27 July 2016 Paper

Phasing the segments of the Keck and Thirty Meter Telescopes via the narrowband phasing algorithm: chromatic effects

Gary Chanan, Mitchell Troy, Nasrat Raouf

Proceedings Volume 9906, 99066F (2016) https://doi.org/10.1117/12.2230748

KEYWORDS: Telescopes, Algorithm development, Cameras, Thirty Meter Telescope, Mirrors, Phase measurement, Aluminum, Colorimetry, Spatial frequencies, Scattering

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Proceedings Article | 4 August 2014 Paper

System modeling of the Thirty Meter Telescope alignment and phasing system

Frank Dekens, Byoung-Joon Seo, Mitchell Troy

Proceedings Volume 9150, 91500Z (2014) https://doi.org/10.1117/12.2057066

KEYWORDS: Systems modeling, Telescopes, Databases, Data modeling, Optical filters, Telecommunications, Mirrors, Visualization, Optical alignment, Thirty Meter Telescope

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Proceedings Article | 4 August 2014 Paper

Systems engineering of the Thirty Meter Telescope for the construction phase

Scott Roberts, John Rogers, Hugh Thompson, Konstantinos Vogiatzis, Douglas MacMartin, Eric Wilde, Mitchell Troy, Byoung-Joon Seo, Carl Nissly

Proceedings Volume 9150, 91500V (2014) https://doi.org/10.1117/12.2056870

KEYWORDS: Systems engineering, Observatories, Computer aided design, Control systems, Data modeling, Systems modeling, Performance modeling, Databases, Interfaces, Thirty Meter Telescope

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Proceedings Article | 4 August 2014 Paper

Wavefront sensing and control performance modeling of the Thirty Meter telescope for systematic trade analyses

Carl Nissly, Byoung-Joon Seo, Mitchell Troy, Gary Chanan, Scott Roberts, John Rogers

Proceedings Volume 9150, 91500S (2014) https://doi.org/10.1117/12.2057157

KEYWORDS: Telescopes, Wavefronts, Adaptive optics, Wavefront sensors, Space telescopes, Performance modeling, Mirrors, Error analysis, Calibration, Thirty Meter Telescope

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Proceedings Article | 22 July 2014 Paper

On-sky measurement accuracy of Keck telescope segment surface errors

Mitchell Troy, Gary Chanan, Jenny Roberts

Proceedings Volume 9145, 91451Q (2014) https://doi.org/10.1117/12.2057094

KEYWORDS: Error analysis, Telescopes, Image segmentation, Mirrors, Wavefront sensors, Zernike polynomials, Atmospheric turbulence, Cameras, Imaging systems, Thirty Meter Telescope

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Proceedings Article | 19 March 2013 Paper

Conceptual design of the adaptive optics system for the laser communication relay demonstration ground station at Table Mountain

Lewis Roberts, Norman Page, Rick Burruss, Tuan Truong, Sharon Dew, Mitchell Troy

Proceedings Volume 8610, 86100N (2013) https://doi.org/10.1117/12.2008981

KEYWORDS: Adaptive optics, Information operations, Telescopes, Relays, Laser communications, Satellites, Wavefront sensors, Actuators, Telecommunications, Mirrors

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Proceedings Article | 13 September 2012 Paper

Design and implementation of the PALM-3000 real-time control system

Tuan Truong, Antonin Bouchez, Rick Burruss, Richard Dekany, Stephen Guiwits, Jennifer Roberts, Jean Shelton, Mitchell Troy

Proceedings Volume 8447, 84472F (2012) https://doi.org/10.1117/12.927867

KEYWORDS: Real-time computing, Actuators, Adaptive optics, Control systems design, Computing systems, Servomechanisms, Control systems, Cameras, Mirrors, Algorithm development

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Proceedings Article | 13 September 2012 Paper

Results from the PALM-3000 high-order adaptive optics system

Jennifer Roberts, Richard Dekany, Rick Burruss, Christoph Baranec, Antonin Bouchez, Ernest Croner, Stephen Guiwits, David Hale, John Henning, Dean Palmer, Mitchell Troy, Tuan Truong, Jeffry Zolkower

Proceedings Volume 8447, 84470Y (2012) https://doi.org/10.1117/12.926477

KEYWORDS: Adaptive optics, Electronics, Telescopes, Stars, Deformable mirrors, Wavefronts, Actuators, Imaging systems, Wavefront sensors, Space telescopes

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Proceedings Article | 10 November 2011 Paper

High fidelity optical modeling for the TMT

Carl Nissly, Byoung-Joon Seo, Mitchell Troy, George Angeli, Myung Cho, Brent Ellerbroek, Piotr Piatrou, Lewis Roberts, J. Shelton, Lianqi Wang

Proceedings Volume 8336, 83360B (2011) https://doi.org/10.1117/12.918708

KEYWORDS: Device simulation, Telescopes, Wavefronts, Adaptive optics, Mirrors, MATLAB, Error analysis, Systems modeling, Wavefront sensors, Sensors

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Proceedings Article | 10 November 2011 Paper

Integrated modeling and systems engineering for the Thirty Meter Telescope

George Angeli, Konstantinos Vogiatzis, Doug MacMynowski, Byoung-Joon Seo, Carl Nissly, Mitchell Troy, Myung Cho

Proceedings Volume 8336, 833605 (2011) https://doi.org/10.1117/12.919363

KEYWORDS: Telescopes, Systems modeling, Observatories, Performance modeling, Systems engineering, Stochastic processes, Adaptive optics, Mathematical modeling, Integrated modeling, Thirty Meter Telescope

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Proceedings Article | 6 August 2010 Paper

Shack-Hartmann phasing of segmented telescopes: systematic effects from lenslet arrays

Mitchell Troy, Gary Chanan, Jennifer Roberts

Proceedings Volume 7733, 77332C (2010) https://doi.org/10.1117/12.857669

KEYWORDS: Wavefront sensors, Reflection, Telescopes, Charge-coupled devices, Prisms, Diffraction, Optical lithography, Image quality, Sensors, Thirty Meter Telescope

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Proceedings Article | 4 August 2010 Paper

Investigation of Thirty Meter Telescope wavefront maintenance using low-order Shack-Hartmann wavefront sensors to correct for thermally-induced misalignments

Carl Nissly, Byoung-Joon Seo, Mitchell Troy, George Angeli, Myung Cho, Chris Shelton, Norbert Sigrist, Mark Sirota

Proceedings Volume 7738, 77380H (2010) https://doi.org/10.1117/12.857849

KEYWORDS: Telescopes, Wavefronts, Wavefront sensors, Device simulation, Systems modeling, Control systems, Thermal modeling, Image quality, Mirrors, Thirty Meter Telescope

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Proceedings Article | 4 August 2010 Paper

Normalized point source sensitivity for off-axis optical performance evaluation of the Thirty Meter Telescope

Byoung-Joon Seo, Carl Nissly, Mitchell Troy, George Angeli

Proceedings Volume 7738, 77380G (2010) https://doi.org/10.1117/12.857722

KEYWORDS: Telescopes, Point spread functions, Vignetting, Telescope design, Distortion, Error analysis, Systems modeling, Optical transfer functions, Space telescopes, Thirty Meter Telescope

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Proceedings Article | 28 July 2010 Paper

Status of the PALM-3000 high-order adaptive optics system

Antonin Bouchez, Richard Dekany, Jennifer Roberts, John Angione, Christoph Baranec, Khanh Bui, Rick Burruss, Ernest Croner, Stephen Guiwits, David D. Hale, John Henning, Dean Palmer, J. Chris Shelton, Mitchell Troy, Tuan Truong, J. Kent Wallace, Jeffry Zolkower

Proceedings Volume 7736, 77361Q (2010) https://doi.org/10.1117/12.857776

KEYWORDS: Adaptive optics, Telescopes, Wavefronts, Actuators, Wavefront sensors, Deformable mirrors, Mirrors, Calibration, Stars, Relays

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Proceedings Article | 28 July 2010 Paper

Advanced static speckle calibration for exoplanet imaging

Laurent Pueyo, Kent Wallace, Mitchell Troy, Rick Burruss, Bruce Macintosh, Remi Soummer

Proceedings Volume 7736, 77362A (2010) https://doi.org/10.1117/12.858270

KEYWORDS: Coronagraphy, Wavefronts, Gemini Planet Imager, Calibration, Interferometers, Error analysis, Wavefront sensors, Spatial frequencies, Point spread functions, Phase measurement

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Proceedings Article | 28 July 2010 Paper

Optical characterization of the PALM-3000 3388-actuator deformable mirror

Jennifer Roberts, Antonin Bouchez, Rick Burruss, Richard Dekany, Stephen Guiwits, Mitchell Troy

Proceedings Volume 7736, 77362E (2010) https://doi.org/10.1117/12.857815

KEYWORDS: Actuators, Mirrors, Adaptive optics, Humidity, Deformable mirrors, Manufacturing, Observatories, Spatial frequencies, Imaging spectroscopy, Optical testing

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Proceedings Article | 28 July 2010 Paper

W. M. Keck Observatory's next-generation adaptive optics facility

P. Wizinowich, S. Adkins, R. Dekany, D. Gavel, C. Max, R. Bartos, J. Bell, A. Bouchez, J. Chin, A. Conrad, A. Delacroix, E. Johansson, R. Kupke, C. Lockwood, J. Lyke, F. Marchis, E. McGrath, D. Medeiros, M. Morris, D. Morrison, C. Neyman, S. Panteleev, M. Pollard, M. Reinig, T. Stalcup, S. Thomas, M. Troy, K. Tsubota, V. Velur, K. Wallace, E. Wetherell

Proceedings Volume 7736, 77360K (2010) https://doi.org/10.1117/12.857628

KEYWORDS: Adaptive optics, Telescopes, Wavefront sensors, Stars, Tomography, Control systems, Keck Observatory, Galactic astronomy, Wavefronts, Sensors

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Proceedings Article | 23 July 2010 Paper

Advanced wavefront sensing and control testbed (AWCT)

Fang Shi, Scott Basinger, Rosemary Diaz, Robert Gappinger, Hong Tang, Raymond Lam, Erkin Sidick, Randall Hein, Mayer Rud, Mitchell Troy

Proceedings Volume 7739, 77392W (2010) https://doi.org/10.1117/12.858304

KEYWORDS: Wavefronts, Cameras, Wavefront sensors, Mirrors, Interferometers, Optical testing, Phase retrieval, Optical alignment, Light, Sensors

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Proceedings Article | 1 October 2009 Paper

Investigation of primary mirror segment's residual errors for the Thirty Meter Telescope

Byoung-Joon Seo, Carl Nissly, George Angeli, Doug MacMynowski, Norbert Sigrist, Mitchell Troy, Eric Williams

Proceedings Volume 7427, 74270F (2009) https://doi.org/10.1117/12.828046

KEYWORDS: Actuators, Wavefronts, Mirrors, Wavefront sensors, Telescopes, Image segmentation, Systems modeling, Sensors, Surface finishing, Thirty Meter Telescope

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Proceedings Article | 18 September 2009 Open Access

Status of the PALM-3000 high-order adaptive optics system

Antonin Bouchez, Richard Dekany, John Angione, Christoph Baranec, Khanh Bui, Rick Burruss, Justin Crepp, Ernest Croner, John Cromer, Stephen Guiwits, David D. Hale, John Henning, Dean Palmer, Jennifer Roberts, Mitchell Troy, Tuan Truong, Jeffry Zolkower

Proceedings Volume 7439, 74390H (2009) https://doi.org/10.1117/12.826571

KEYWORDS: Wavefront sensors, Adaptive optics, Deformable mirrors, Wavefronts, Telescopes, Actuators, Relays, Mirrors, Space telescopes, Stars

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Proceedings Article | 17 July 2008 Paper

A conceptual design for the Thirty Meter Telescope alignment and phasing system

Mitchell Troy, Gary Chanan, Scott Michaels, Randy Bartos, Graham Bothwell, Amir Give'on, Randy Hein, Max Radin, Jenny Roberts, J. Michael Rodgers, Lawrence Scherr, Byoung-Joon Seo, David Zimmerman

Proceedings Volume 7012, 70120Y (2008) https://doi.org/10.1117/12.788560

KEYWORDS: Telescopes, Image segmentation, Cameras, Mirrors, Space telescopes, Stars, Beam splitters, Wavefronts, Wavefront sensors, Thirty Meter Telescope

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Proceedings Article | 15 July 2008 Paper

Autonomous phase retrieval control for calibration of the Palomar Adaptive Optics system

Siddarayappa Bikkannavar, Catherine Ohara, Mitchell Troy

Proceedings Volume 7015, 70155K (2008) https://doi.org/10.1117/12.790676

KEYWORDS: Magnesium, Wavefronts, Adaptive optics, Actuators, Point spread functions, Calibration, Wavefront sensors, Phase retrieval, Control systems, Cameras

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Proceedings Article | 14 July 2008 Paper

Real-time wavefront control for the PALM-3000 high order adaptive optics system

Tuan Truong, Antonin Bouchez, Richard Dekany, Jean Shelton, Mitchell Troy, John Angione, Rick Burruss, John Cromer, Stephen Guiwits, Jennifer Roberts

Proceedings Volume 7015, 70153I (2008) https://doi.org/10.1117/12.790457

KEYWORDS: Adaptive optics, Digital signal processing, Wavefronts, Computer architecture, Control systems, Actuators, Wavefront reconstruction, Wavefront sensors, Switches, Databases

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Proceedings Article | 11 July 2008 Paper

Analysis of Normalized Point Source Sensitivity as a performance metric for the Thirty Meter Telescope

Byoung-Joon Seo, Carl Nissly, George Angeli, Brent Ellerbroek, Jerry Nelson, Norbert Sigrist, Mitchell Troy

Proceedings Volume 7017, 70170T (2008) https://doi.org/10.1117/12.790453

KEYWORDS: Telescopes, Optical transfer functions, Error analysis, Space telescopes, Point spread functions, Wavefronts, Systems modeling, Spatial frequencies, Computer simulations, Thirty Meter Telescope

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Proceedings Article | 10 July 2008 Paper

The PALM-3000 high-order adaptive optics system for Palomar Observatory

Antonin Bouchez, Richard Dekany, John Angione, Christoph Baranec, Matthew Britton, Khanh Bui, Rick Burruss, John Cromer, Stephen Guiwits, John Henning, Jeff Hickey, Daniel McKenna, Anna Moore, Jennifer Roberts, Thang Trinh, Mitchell Troy, Tuan Truong, Viswa Velur

Proceedings Volume 7015, 70150Z (2008) https://doi.org/10.1117/12.789777

KEYWORDS: Wavefronts, Adaptive optics, Actuators, Infrared sensors, Sensors, Wavefront sensors, Telescopes, Stars, Visible radiation, Deformable mirrors

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Proceedings Article | 10 July 2008 Paper

Facilitizing the Palomar AO laser guide star system

Jennifer Roberts, Antonin Bouchez, John Angione, Rick Burruss, John Cromer, Richard Dekany, Stephen Guiwits, John Henning, Jeff Hickey, Edward Kibblewhite, Daniel McKenna, Anna Moore, Harold Petrie, J. Shelton, Robert Thicksten, Thang Trinh, Renu Tripathi, Mitchell Troy, Tuan Truong, Viswa Velur

Proceedings Volume 7015, 70152S (2008) https://doi.org/10.1117/12.790042

KEYWORDS: Telescopes, Adaptive optics, Stars, Cameras, Camera shutters, Sodium, Laser safety, Laser guide stars, Servomechanisms, Control systems

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Proceedings Article | 10 July 2008 Paper

Advances in edge sensors for the Thirty Meter Telescope primary mirror

Chris Shelton, Terry Mast, Gary Chanan, Jerry Nelson, Lewis Roberts, Mitchell Troy, Mark Sirota, Byoung-Joon Seo, Daniel MacDonald

Proceedings Volume 7012, 701210 (2008) https://doi.org/10.1117/12.790415

KEYWORDS: Sensors, Calibration, Mirrors, Telescopes, Sensor calibration, Image segmentation, Motion models, Temperature metrology, Actuators, Thirty Meter Telescope

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Proceedings Article | 9 July 2008 Paper

High-resolution optical modeling of the Thirty Meter Telescope for systematic performance trades

Carl Nissly, Byoung-Joon Seo, Mitchell Troy, George Angeli, John Angione, Ian Crossfield, Brent Ellerbroek, Luc Gilles, Norbert Sigrist

Proceedings Volume 7017, 70170U (2008) https://doi.org/10.1117/12.788596

KEYWORDS: Mirrors, Telescopes, Error analysis, Systems modeling, Device simulation, Wavefronts, Space telescopes, Adaptive optics, MATLAB, Thirty Meter Telescope

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Proceedings Article | 28 June 2006 Paper

Extreme adaptive optics using an off-axis subaperture on a ground-based telescope

E. Serabyn, J. Wallace, M. Troy, B. Mennesson, P. Haguenauer, R. Gappinger, E. Bloemhof

Proceedings Volume 6272, 62722W (2006) https://doi.org/10.1117/12.672650

KEYWORDS: Adaptive optics, Coronagraphy, Telescopes, Wavefronts, Infrared telescopes, Relays, Cameras, Stars, Infrared imaging, Visible radiation

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Proceedings Article | 28 June 2006 Paper

Effects of diffraction and static wavefront errors on high-contrast imaging from the Thirty Meter Telescope

Mitchell Troy, Ian Crossfield, Gary Chanan, Philip Dumont, Joseph Green, Bruce Macintosh

Proceedings Volume 6272, 62722C (2006) https://doi.org/10.1117/12.671667

KEYWORDS: Wavefronts, Adaptive optics, Telescopes, Reflectivity, Mirrors, Diffraction, Image segmentation, Error analysis, Stars, Thirty Meter Telescope

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Proceedings Article | 28 June 2006 Paper

PALM-3000: visible light AO on the 5.1-meter Telescope

Richard Dekany, Antonin Bouchez, Matthew Britton, Viswa Velur, Mitchell Troy, J. Chris Shelton, Jennifer Roberts

Proceedings Volume 6272, 62720G (2006) https://doi.org/10.1117/12.674496

KEYWORDS: Adaptive optics, Stars, Telescopes, Visible radiation, Wavefront sensors, Laser guide stars, Wavefronts, Infrared radiation, Actuators, Sodium

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Proceedings Article | 27 June 2006 Paper

Post-coronagraph wavefront sensing for the TMT Planet Formation Imager

G. Vasisht, I. Crossfield, P. Dumont, B. Levine, M. Troy, M. Shao, J. Shelton, J. Wallace

Proceedings Volume 6272, 627253 (2006) https://doi.org/10.1117/12.672571

KEYWORDS: Adaptive optics, Signal to noise ratio, Wavefronts, Decision support systems, Sensors, Nulling interferometry, Homodyne detection, Planets, Coronagraphy, Spatial frequencies

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Proceedings Article | 27 June 2006 Paper

Extreme adaptive optics for the Thirty Meter Telescope

Bruce Macintosh, Mitchell Troy, Rene Doyon, James Graham, Kevin Baker, Brian Bauman, Christian Marois, David Palmer, Donald Phillion, Lisa Poyneer, Ian Crossfield, Philip Dumont, B. Marty Levine, Michael Shao, Gene Serabyn, Chris Shelton, Gautum Vasisht, James Wallace, Jean-Francois Lavigne, Philippe Valee, Neil Rowlands, Ken Tam, Daniel Hackett

Proceedings Volume 6272, 62720N (2006) https://doi.org/10.1117/12.672032

KEYWORDS: Planets, Adaptive optics, Nulling interferometry, Stars, Telescopes, Wavefront sensors, Sensors, Point spread functions, Wavefronts, Thirty Meter Telescope

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Proceedings Article | 27 June 2006 Paper

A conceptual design for the Thirty Meter Telescope adaptive optics systems

B. Ellerbroek, C. Boyer, C. Bradley, M. Britton, S. Browne, R. Buchroeder, J.-L. Carel, M. Cho, M. Chun, R. Clare, R. Conan, L. Daggert, R. Dekany, J. Elias, D. Erickson, R. Flicker, D. Gavel, L. Gilles, P. Hampton, G. Herriot, M. Hunten, R. Joyce, M. Liang, B. Macintosh, R. Palomo, I. Powell, S. Roberts, E. Ruch, J.-C. Sinquin, M. Smith, J. Stoesz, M. Troy, G. Tyler, J.-P. Veran, C. Vogel, Q. Yang

Proceedings Volume 6272, 62720D (2006) https://doi.org/10.1117/12.669422

KEYWORDS: Adaptive optics, Telescopes, Mirrors, Laser guide stars, Wavefronts, Wavefront sensors, Stars, Control systems, Imaging spectroscopy, Imaging systems

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Proceedings Article | 27 June 2006 Paper

Multiple guide star tomography demonstration at Palomar Observatory

V. Velur, R. Flicker, B. Platt, M. Britton, R. Dekany, M. Troy, J. Roberts, J. Shelton, J. Hickey

Proceedings Volume 6272, 62725C (2006) https://doi.org/10.1117/12.671666

KEYWORDS: Stars, Wavefronts, Adaptive optics, Wavefront sensors, Tomography, Cameras, Statistical analysis, Error analysis, Sensors, Thirty Meter Telescope

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Proceedings Article | 23 June 2006 Paper

The alignment and phasing system for the Thirty Meter Telescope

Gary Chanan, Mitchell Troy, Ian Crossfield, Jerry Nelson, Terry Mast

Proceedings Volume 6267, 62672V (2006) https://doi.org/10.1117/12.670894

KEYWORDS: Wavefronts, Mirrors, Telescopes, Wavefront sensors, Cameras, Astronomy, Imaging systems, Image segmentation, Control systems, Thirty Meter Telescope

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Proceedings Article | 13 June 2006 Paper

Astronomical near-neighbor detection with a four-quadrant phase mask (FQPM) coronagraph

Pierre Haguenauer, Eugene Serabyn, Bertrand Mennesson, James Wallace, Robert Gappinger, Mitchell Troy, Eric Bloemhof, Jim Moore, Chris Koresko

Proceedings Volume 6265, 62651G (2006) https://doi.org/10.1117/12.672595

KEYWORDS: Coronagraphy, Stars, Telescopes, Space telescopes, Device simulation, Reticles, Data processing, Point spread functions, Adaptive optics, Astronomy

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Proceedings Article | 10 June 2006 Paper

Verification of the James Webb Space Telescope coarse phase sensor using the Keck Telescope

Marc Albanese, Allan Wirth, Andrew Jankevics, Tom Gonsiorowski, Catherine Ohara, Fang Shi, Mitchell Troy, Gary Chanan, Scott Acton

Proceedings Volume 6265, 62650Z (2006) https://doi.org/10.1117/12.672055

KEYWORDS: James Webb Space Telescope, Mirrors, Calibration, Image segmentation, Sensors, Space telescopes, Telescopes, Image processing algorithms and systems, Image registration, Cameras

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Proceedings Article | 15 September 2005 Paper

An off-axis four-quadrant phase mask (FQPM) coronagraph for Palomar: high-contrast near bright stars imager

Pierre Haguenauer, Eugene Serabyn, Eric Bloemhof, James Wallace, Robert Gappinger, Bertrand Mennesson, Mitchell Troy, Chris Koresko, James Moore

Proceedings Volume 5905, 59050S (2005) https://doi.org/10.1117/12.615234

KEYWORDS: Stars, Coronagraphy, Telescopes, Photomasks, Adaptive optics, Reticles, Refractive index, Manufacturing, Space telescopes, Imaging systems

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Proceedings Article | 13 September 2005 Paper

Performance of the optical communication adaptive optics testbed

Jennifer Roberts, Mitchell Troy, Malcolm Wright, Stephen Guiwits, Siddarayappa Bikkannavar, Gary Brack, Vachik Garkanian, Dean Palmer, Benjamin Platt, Tuan Truong, Kent Wallace, Keith Wilson

Proceedings Volume 5892, 589212 (2005) https://doi.org/10.1117/12.618072

KEYWORDS: Adaptive optics, Wavefronts, Turbulence, Zoom lenses, Error analysis, Calibration, Optical communications, Sensors, Servomechanisms, Signal detection

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Proceedings Article | 25 October 2004 Paper

Implementation of the Chicago sum frequency laser at Palomar laser guide star test bed

Viswa Velur, Edward Kibblewhite, Richard Dekany, Mitchell Troy, Hal Petrie, Robert Thicksten, Gary Brack, Thang Trin, Matthew Cheselka

Proceedings Volume 5490, (2004) https://doi.org/10.1117/12.550675

KEYWORDS: Telescopes, Mirrors, Adaptive optics, Laser guide stars, Cameras, Pulsed laser operation, Control systems, Laser safety, Observatories, Laser beam propagation

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Proceedings Article | 25 October 2004 Paper

Is that really your Strehl ratio?

Lewis Roberts, Marshall Perrin, Franck Marchis, Anand Sivaramakrishnan, Russell Makidon, Julian Christou, Bruce Macintosh, Lisa Poyneer, Marcos van Dam, Mitchell Troy

Proceedings Volume 5490, (2004) https://doi.org/10.1117/12.549115

KEYWORDS: Point spread functions, Diffraction, Adaptive optics, Photometry, Telescopes, Monte Carlo methods, Wavefronts, Computer simulations, Optical transfer functions, Modulation transfer functions

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Proceedings Article | 25 October 2004 Paper

Science camera calibration for extreme adaptive optics

James Wallace, Joseph Green, Michael Shao, Mitchell Troy, James Lloyd, Bruce Macintosh

Proceedings Volume 5490, (2004) https://doi.org/10.1117/12.552362

KEYWORDS: Wavefronts, Calibration, Cameras, Coronagraphy, Sensors, Adaptive optics, Phase measurement, Sensor calibration, CCD cameras, Wavefront sensors

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Proceedings Article | 25 October 2004 Paper

Coronagraph design for an extreme adaptive optics system with spatially filtered wavefront sensing on segmented telescopes

Anand Sivaramakrishnan, Russell Makidon, Remi Soummer, Bruce Macintosh, Mitchell Troy, Gary Chanan, James Lloyd, Marshall Perrin, James Graham, Lisa Poyneer, Andrew Sheinis

Proceedings Volume 5490, (2004) https://doi.org/10.1117/12.551939

KEYWORDS: Coronagraphy, Point spread functions, Adaptive optics, Telescopes, Image segmentation, Space telescopes, Stars, Wavefront sensors, Fourier transforms, Wavefronts

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Proceedings Article | 25 October 2004 Paper

eXtreme Adaptive Optics Planet Imager: overview and status

Bruce Macintosh, Brian Bauman, Julia Wilhelmsen Evans, James Graham, Christopher Lockwood, Lisa Poyneer, Daren Dillon, Don Gavel, Joseph Green, James Lloyd, Russell Makidon, Scot Olivier, Dave Palmer, Marshall Perrin, Scott Severson, Andrew Sheinis, Anand Sivaramakrishnan, Gary Sommargren, Remi Soummer, Mitchell Troy, J. Kent Wallace, Edward Wishnow

Proceedings Volume 5490, (2004) https://doi.org/10.1117/12.552188

KEYWORDS: Adaptive optics, Point spread functions, Wavefronts, Planets, Coronagraphy, Wavefront sensors, Telescopes, Stars, Imaging systems, Calibration

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Proceedings Article | 28 September 2004 Paper

Experimental verification of dispersed fringe sensing as a segment-phasing technique using the Keck Telescope

Fang Shi, Catherine Ohara, Gary Chanan, Mitchell Troy, David Redding

Proceedings Volume 5489, (2004) https://doi.org/10.1117/12.552407

KEYWORDS: Telescopes, Space telescopes, James Webb Space Telescope, Visibility, Calibration, Sensors, Modulation, Mirrors, Diffraction, Image segmentation

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Proceedings Article | 19 November 2003 Paper

Extreme adaptive optics planet imager: XAOPI

Bruce Macintosh, James Graham, Lisa Poyneer, Gary Sommargren, Julia Wilhelmsen, Don Gavel, Steve Jones, Paul Kalas, James Lloyd, Russ Makidon, Scot Olivier, Dave Palmer, Jennifer Patience, Marshall Perrin, Scott Severson, Andrew Sheinis, Anand Sivaramakrishnan, Mitch Troy, J. Wallace

Proceedings Volume 5170, (2003) https://doi.org/10.1117/12.506836

KEYWORDS: Wavefronts, Adaptive optics, Wavefront sensors, Planets, Imaging systems, Coronagraphy, Point spread functions, Stars, Telescopes, Mirrors

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Proceedings Article | 7 February 2003 Paper

Real-time wavefront processors for the next generation of adaptive optics systems: a design and analysis

Tuan Truong, Gary Brack, Mitchell Troy, Thang Trinh, Fang Shi, Richard Dekany

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.459353

KEYWORDS: Digital signal processing, Adaptive optics, Actuators, Computing systems, Cameras, Wavefronts, Wavefront sensors, Optical design, Silicon, Microelectromechanical systems

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Proceedings Article | 7 February 2003 Paper

Sparse-matrix wavefront reconstruction: simulations and experiments

Fang Shi, Douglas MacMartin, Mitchell Troy, Gary Brack, Rick Burruss, Richard Dekany

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.457134

KEYWORDS: Matrices, Actuators, Wavefronts, Adaptive optics, Wavefront reconstruction, Spatial frequencies, Wavefront sensors, Sensors, Device simulation, Telescopes

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Proceedings Article | 7 February 2003 Paper

Adaptive optics imaging of a stellar occultation by Titan

Antonin Bouchez, Michael Brown, Mitchell Troy, Rick Burruss, Richard Dekany, Robert West

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.459463

KEYWORDS: Stars, Adaptive optics, Point spread functions, Atmospheric optics, Image processing, Atmospheric modeling, Observatories, Imaging systems, Stratosphere, Earth's atmosphere

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Proceedings Article | 7 February 2003 Paper

Initial concepts for CELT adaptive optics

Richard Dekany, Brian Bauman, Donald Gavel, Mitchell Troy, Bruce Macintosh, Matthew Britton

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.459798

KEYWORDS: Adaptive optics, Mirrors, Telescopes, Wavefronts, Stars, Deformable mirrors, Relays, Error analysis, Actuators, Space telescopes

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Proceedings Article | 30 January 2003 Paper

Diffraction effects from giant segmented mirror telescopes

Mitchell Troy, Gary Chanan

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.457985

KEYWORDS: Image segmentation, Diffraction, Telescopes, Mirrors, Adaptive optics, Control systems, Wavefronts, Segmented mirrors, Space telescopes, Spatial frequencies

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Proceedings Article | 18 December 2002 Paper

Advanced Segmented Silicon Space Telescope (ASSiST)

Richard Dekany, Douglas MacMartin, Gary Chanan, Mitchell Troy

Proceedings Volume 4849, (2002) https://doi.org/10.1117/12.460563

KEYWORDS: Mirrors, Silicon, Space telescopes, Actuators, Microelectromechanical systems, Telescopes, Semiconducting wafers, Wafer-level optics, Silicon carbide, Stars

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Proceedings Article | 20 July 2000 Paper

Phasing the primary mirror segments of the Keck telescopes: a comparison of different techniques

Gary Chanan, Mitchell Troy, Catherine Ohara

Proceedings Volume 4003, (2000) https://doi.org/10.1117/12.391510

KEYWORDS: Telescopes, Image segmentation, Diffraction, Wavefront sensors, Mirrors, Space telescopes, Sensors, Wavefronts, Neck, Large telescopes

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