Mr. Frank M. Groark Profile

Frank M. Groark

Manager at GMTO Corp

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 11 September 2024 Presentation + Paper

The Giant Magellan Telescope project in 2024: status and look ahead

W. Burgett, R. Bernstein, D. Ashby, B. Bigelow, G. Brossus, M. Cox, R. Demers, F. Figueroa, B. Fischer, F. Groark, R. Laskin, R. Millan-Gabet, S. Park, R. Turner, B. Walls

Proceedings Volume 13094, 1309417 (2024) https://doi.org/10.1117/12.3020733

KEYWORDS: Design, Telescopes, Equipment, Control systems, Mirrors, Adaptive optics, Interfaces, Spectrographs, Universities, Optical testing

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Proceedings Article | 28 August 2024 Poster

GMT adaptive secondary mirror positioner model and testing

Peter Thompson, Frank Groark, Hugo Chiquito, Glenn Brossus, Daniele Gallieni, Roberto Biasi, Matteo Tintori, Mauro Manetti, Pierluigi Fumi, Francesco Leonardi

Proceedings Volume 13097, 130974V (2024) https://doi.org/10.1117/12.3020610

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Proceedings Article | 27 August 2024 Presentation + Paper

GMT ASM overview and status

Frank Groark, Peter Thompson, Hugo Chiquito, Glenn Brossus, John Spanos, Daniele Gallieni, Roberto Biasi, Matteo Tintori, Mauro Manetti, Pierluigi Fumi, Francesco Leonardi

Proceedings Volume 13097, 130972N (2024) https://doi.org/10.1117/12.3020597

KEYWORDS: Actuators, Optical surfaces, Manufacturing, Zerodur, Design, Telescopes, Adaptive mirrors, Finite element methods

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Proceedings Article | 30 August 2022 Poster + Paper

GMT ASM co-phasing numerical simulation and experimental results

M. Manetti, R. Biasi, M. Tintori, D. Gallieni, P. Thompson, J. Spanos, A. Bouchez, F. Quiros, B. Sitarski, F. Groark

Proceedings Volume 12185, 121857V (2022) https://doi.org/10.1117/12.2630749

KEYWORDS: Sensors, Mirrors, Telescopes, Device simulation, Error analysis, Computer simulations, Numerical simulations, Motion models, Control systems, Deformable mirrors

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Proceedings Article | 30 August 2022 Poster + Paper

GMT ASM prototype dynamic and optical tests results

M. Andrighettoni, R. Biasi, M. Manetti, M. Tintori, D. Gallieni, P. Thompson, J. Spanos, A. Bouchet, F. Groark

Proceedings Volume 12185, 121857X (2022) https://doi.org/10.1117/12.2630750

KEYWORDS: Optical testing, Prototyping, Fluid dynamics, Sensors, Interferometers, Temperature metrology, Electronics, Cooling systems, Sensor calibration

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Proceedings Article | 29 August 2022 Presentation + Paper

Overview and status of the Giant Magellan Telescope project

James Fanson, Rebecca Bernstein, David Ashby, Bruce Bigelow, Glenn Brossus, William Burgett, Richard Demers, Barbara Fischer, Francisco Figueroa, Frank Groark, Robert Laskin, Rafael Millan-Gabet, Samuel Park, Martí Pi, Robert Turner, Brian Walls

Proceedings Volume 12182, 121821C (2022) https://doi.org/10.1117/12.2631694

KEYWORDS: Mirrors, Telescopes, Control systems, Prototyping, Observatories, Adaptive optics, Actuators, Spectrographs, Software development, Sensors

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Proceedings Article | 13 December 2020 Poster + Paper

GMT adaptive secondary mirrors subsystem final design

Daniele Gallieni, Matteo Tintori, Pierluigi Fumi, Lorenzo Crimella, Roberto Biasi, Gerald Angerer, Mauro Manetti, Antonin Bouchez, Glenn Brossus, Frank Groark, Peter Thompson

Proceedings Volume 11448, 114485K (2020) https://doi.org/10.1117/12.2562698

KEYWORDS: Mirrors, Telescopes, Deformable mirrors, Optical instrument design, Actuators, Reliability, Safety, Sensors, Electronics, Control systems

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Proceedings Article | 13 December 2020 Presentation + Paper

Overview and status of the Giant Magellan Telescope project

James Fanson, Rebecca Bernstein, George Angeli, David Ashby, Bruce Bigelow, Glenn Brossus, Antonin Bouchez, William Burgett, Adam Contos, Richard Demers, Francisco Figueroa, Barbara Fischer, Frank Groark, Robert Laskin, Rafael Millan-Gabet, Marti Pi, Nune Wheeler

Proceedings Volume 11445, 114451F (2020) https://doi.org/10.1117/12.2561852

KEYWORDS: Telescopes, Mirrors, Optical instrument design, Polishing, Glasses, Buildings, Lanthanum, Control systems, Prototyping, Wavefront sensors

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Proceedings Article | 10 July 2018 Paper

Experimental study of breakaway system for the fast-steering secondary mirror prototype of GMT

Yunjong Kim, Wongi Lee, Chanhee Lee, Myung K. Cho, Christoph Dribusch, Sungho Lee, Sanghyuk Kim, Chang-Hee Kim, Ueejeong Jeong, Jeong-Yeol Han, Bong-Kon Moon, Chan Park, Byeong-Gon Park, Youra Jun, Jieun Ryu, Gary Poczulp, Ming Liang, Il-Kwon Moon, Ho-Sang Kim, Paul Gardner, Robert Bernier, Frank Groark, Hugo Chiquito

Proceedings Volume 10706, 107064A (2018) https://doi.org/10.1117/12.2311779

KEYWORDS: Mirrors, Prototyping, Telescopes, Actuators, Earthquakes, Space telescopes, 3D modeling, Astronomy, Large telescopes, Seismic sensors

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Proceedings Article | 10 July 2018 Presentation + Paper

Control modeling of the fast-steering secondary mirror for GMT

Christoph Dribusch, Myung Cho, Youra Jun, Jieun Ryu, Gary Poczulp, Ming Liang, Sungho Lee, Jeong-Yeol Han, Ueejeong Jeong, Sanghyuk Kim, Bong-Kon Moon, Chang-Hee Kim, Yunjong Kim, Chan Park, Byeong-Gon Park, Il-Kwon Moon, Chanhee Lee, Wongi Lee, Ho-Sang Kim, Paul Gardner, Robert Bernier, Frank Groark, Hugo Chiquito

Proceedings Volume 10705, 107050Z (2018) https://doi.org/10.1117/12.2313351

KEYWORDS: Mirrors, Actuators, Telescopes, Secondary tip-tilt mirrors, Motion models, Astronomy, Simulink, Control systems, Piezoelectric drives, Piezoelectric driven mechanisms

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Proceedings Article | 10 July 2018 Presentation + Paper

Design of the fast steering secondary mirror assembly for the Giant Magellan Telescope

Myung Cho, Youra Jun, Christoph Dribusch, Jieun Ryu, Gary Poczulp, Ming Liang, Sungho Lee, Jeong-Yeol Han, Ueejeong Jeong, Sanghyuk Kim, Bongkon Moon, Chang-Hee Kim, Yunjong Kim, Chan Park, Byeong-Gon Park, Il-Kwon Moon, Chan-Hee Lee, Wongi Lee, Ho-Sang Kim, Paul Gardner, Robert Bernier, Frank Groark, Hugo Chiquito

Proceedings Volume 10706, 1070607 (2018) https://doi.org/10.1117/12.2313375

KEYWORDS: Mirrors, Telescopes, Actuators, Space telescopes, Off axis mirrors, Integrated modeling, Interfaces, Optical instrument design, Phase transfer function, Control systems

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Proceedings Article | 6 July 2018 Presentation + Paper

Overview and status of the Giant Magellan Telescope project

James Fanson, Patrick McCarthy, Rebecca Bernstein, George Angeli, David Ashby, Bruce Bigelow, Antonin Bouchez, William Burgett, Eric Chauvin, Adam Contos, Francisco Figueroa, Peter Gray, Frank Groark, Robert Laskin, Rafael Millan-Gabet, Andrew Rakich, Rodrigo Sandoval, Marti Pi, Nune Wheeler

Proceedings Volume 10700, 1070012 (2018) https://doi.org/10.1117/12.2313340

KEYWORDS: Telescopes, Mirrors, Observatories, Optical instrument design, Spectrographs, Wavefront sensors, Adaptive optics, Control systems, Interfaces

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Proceedings Article | 6 July 2018 Paper

Development status of the fast-steering secondary mirror of GMT

Sungho Lee, Jeong-Yeol Han, Ueejeong Jeong, Sanghyuk Kim, Bong-Kon Moon, Chang-Hee Kim, Yunjong Kim, Chan Park, Byeong-Gon Park, Myung Cho, Christoph Dribusch, Youra Jun, Jieun Ryu, Gary Poczulp, Ming Liang, Il Kweon Moon, Chanhee Lee, Wongi Lee, Ho-Sang Kim, Paul Gardner, Robert Bernier, Frank Groark, Hugo Chiquito

Proceedings Volume 10700, 1070044 (2018) https://doi.org/10.1117/12.2313174

KEYWORDS: Mirrors, Telescopes, Control systems design, Actuators, Control systems, Off axis mirrors

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Proceedings Article | 6 July 2018 Paper

Tip-tilt performance test of FSMP for development of the GMT FSM

Sanghyuk Kim, Chang-Hee Kim, Ueejeong Jeong, Sungho Lee, Won Gi Lee, Chan-Hee Lee, Il-Kwon Moon, Jeong-Yeol Han, Yunjong Kim, Bongkon Moon, Myung Kyu Cho, Byeong-Gon Park, Chan Park, Ho-Sang Kim, Paul Gardner, Robert Bernier, Frank Groark, Hugo Chiquito

Proceedings Volume 10700, 107003P (2018) https://doi.org/10.1117/12.2311774

KEYWORDS: Mirrors, Actuators, Sensors, Secondary tip-tilt mirrors, Prototyping

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Proceedings Article | 6 July 2018 Paper

Preliminary AIT plan for the FSM segments of GMT

Jeong-Yeol Han, Sungho Lee, Sanghyuk Kim, Yunjong Kim, Ueejeong Jeong, Myung Cho, Christoph Dribusch, Bong-Kon Moon, Chang-Hee Kim, Chan Park, Byeong-Gon Park, Youra Jun, Jieun Ryu, Gary Poczulp, Ming Liang, Il-Kwon Moon, Chanhee Lee, Wongi Lee, Ho-Sang Kim, Paul Gardner, Robert Bernier, Frank Groark, Hugo Chiquito

Proceedings Volume 10700, 107002D (2018) https://doi.org/10.1117/12.2314292

KEYWORDS: Mirrors, Assembly tolerances, Safety, Integrated optics, Optical testing, Tolerancing

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Proceedings Article | 8 August 2016 Paper

Overview and status of the Giant Magellan Telescope Project

Patrick McCarthy, James Fanson, Rebecca Bernstein, David Ashby, Bruce Bigelow, Nune Boyadjian, Antonin Bouchez, Eric Chauvin, Eduardo Donoso, Jose Filgueira, Robert Goodrich, Frank Groark, George Jacoby, Eric Pearce

Proceedings Volume 9906, 990612 (2016) https://doi.org/10.1117/12.2234505

KEYWORDS: Telescopes, Mirrors, Adaptive optics, Optical instrument design, Observatories, Prototyping, Adaptive optics, Spectrographs, Glasses, Wind measurement, Polishing

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Proceedings Article | 23 October 1995 Paper

Fabrication of a 20.5-inch-diameter segmented silicon annular optic prototype for the ROMA program

Frank Hassell, Frank Groark

Proceedings Volume 2543, (1995) https://doi.org/10.1117/12.225281

KEYWORDS: Silicon, Prototyping, Surface finishing, Silicon carbide, Polishing, Single point diamond turning, Cladding, Diamond, Coating, Resonators

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Showing 5 of 17 publications

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