Dr. Yunjong Kim Profile

Dr. Yunjong Kim

at Korea Astronomy and Space Science Institute

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Author

Publications (16)

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

Proc. SPIE. 10705, Modeling, Systems Engineering, and Project Management for Astronomy VIII

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 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

Proc. SPIE. 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III

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

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

Proc. SPIE. 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III

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 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

Proc. SPIE. 10700, Ground-based and Airborne Telescopes VII

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

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Proceedings Article | 6 July 2018 Presentation + Paper

The GMT-consortium large earth finder (G-CLEF): an optical echelle spectrograph for the Giant Magellan Telescope (GMT)

Andrew Szentgyorgyi, Daniel Baldwin, Stuart Barnes, Jacob Bean, Sagi Ben-Ami, Patricia Brennan, Jamie Budynkiewicz, Daniel Catropa, Moo-Young Chun, Charlie Conroy, Adam Contos, Jeffrey Crane, Daniel Durusky, Harland Epps, Ian Evans, Janet Evans, Valery Fishman, Anna Frebel, Thomas Gauron, Dani Guzman, Tyson Hare, Bi-Ho Jang, Jeong-Gyun Jang, Andres Jordan, Jihun Kim, Kang-Min Kim, Yunjong Kim, Sungho Lee, Mercedes Lopez-Morales, Claudia Mendes de Oliveira, Kenneth McCracken, Stuart McMuldroch, Joseph Miller, Mark Mueller, Jae Sok Oh, Cem Onyuksel, Byeong-Gon Park, Chan Park, Sung-Joon Park, Charles Paxson, David Phillips, David Plummer, William Podgorski, Adam Rubin, Andreas Seifahrt, Daniel Stark, Joao Steiner, Alan Uomoto, Ronald Walsworth, Young-Sam Yu

Proc. SPIE. 10702, Ground-based and Airborne Instrumentation for Astronomy VII

KEYWORDS: Spectrographs, Cameras, Calibration, Telescopes, Stars, Optical benches, Thorium

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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

Proc. SPIE. 10700, Ground-based and Airborne Telescopes VII

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

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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

Proc. SPIE. 10700, Ground-based and Airborne Telescopes VII

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

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Proceedings Article | 1 September 2017 Presentation + Paper

Optical demonstration of a starshade at flight Fresnel numbers

Yunjong Kim, Anthony Harness, Dan Sirbu, Mengya Hu, Mike Galvin, N. Jeremy Kasdin, Robert Vanderbei, Stuart Shaklan

Proc. SPIE. 10400, Techniques and Instrumentation for Detection of Exoplanets VIII

KEYWORDS: Planets, Exoplanets, Stars, Space operations, Space telescopes, Optical testing, Mathematical modeling, Performance modeling

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Proceedings Article | 1 September 2017 Presentation + Paper

Modeling and performance predictions for the Princeton Starshade Testbed

Anthony Harness, Stuart Shaklan, Philip Dumont, Yunjong Kim, N. Jeremy Kasdin

Proc. SPIE. 10400, Techniques and Instrumentation for Detection of Exoplanets VIII

KEYWORDS: Performance modeling, Optics manufacturing, Photomasks, Spectroscopy, Exoplanets, Lithography, Edge roughness, Manufacturing, Wavefronts, Optical fabrication

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Proceedings Article | 1 September 2017 Paper

Simulation of realistic images for Starshade missions

Mengya (Mia) Hu, Anthony Harness, Yunjong Kim, N. Jeremy Kasdin, Robert Vanderbei, Maxime Jean Rizzo, Aki Roberge

Proc. SPIE. 10400, Techniques and Instrumentation for Detection of Exoplanets VIII

KEYWORDS: Exoplanets, Image processing, Imaging systems, Exoplanetary science, Optical design

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Proceedings Article | 29 July 2016 Paper

Experimental study of starshade at flight Fresnel numbers in the laboratory

Yunjong Kim, Dan Sirbu, Michael Galvin, N. Jeremy Kasdin, Robert Vanderbei

Proc. SPIE. 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave

KEYWORDS: Planets, Exoplanets, Space telescopes, Telescopes, Wavefronts, Cameras, Diffraction, Apodization, Sensors, Performance modeling

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Proceedings Article | 22 July 2016 Paper

Design and construction of a 76m long-travel laser enclosure for a space occulter testbed

Michael Galvin, Yunjong Kim, N. Jeremy Kasdin, Dan Sirbu, Robert Vanderbei, Dan Echeverri, Giuseppe Sagolla, Andreas Rousing, Kunjithapatham Balasubramanian, Daniel Ryan, Stuart Shaklan, Doug Lisman

Proc. SPIE. 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II

KEYWORDS: Space telescopes, Cameras, Switches, Laser safety, Reflectivity, Stray light, Sensors, Telescopes, Laser systems engineering, Aluminum

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Proceedings Article | 16 September 2015 Paper

Design of a laboratory testbed for external occulters at flight Fresnel numbers

Yunjong Kim, Mike Galvin, N. Jeremy Kasdin, Robert Vanderbei, Dongok Ryu, Ki-Won Kim, Sug-Whan Kim, Dan Sirbu

Proc. SPIE. 9605, Techniques and Instrumentation for Detection of Exoplanets VII

KEYWORDS: Space telescopes, Apodization, Diffraction, Telescopes, Wavefronts, Reflectivity, Exoplanets, Opacity, Collimation, Space operations

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Proceedings Article | 17 October 2012 Paper

Computer-aided alignment method using RMS WFE value as an optimization criterion

Yunjong Kim, Ho-Soon Yang, Yun-Woo Lee

Proc. SPIE. 8491, Optical System Alignment, Tolerancing, and Verification VI

KEYWORDS: Optical alignment, Mirrors, Optical components, Spherical lenses, Infrared imaging, Infrared telescopes, Optimization (mathematics), Wavefronts, Lenses, Zernike polynomials

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Proceedings Article | 3 September 2010 Paper

Integration of differential wavefront sampling with merit function regression for efficient alignment of three-mirror anastigmat optical system

Eun-Song Oh, Seonghui Kim, Yunjong Kim, Hanshin Lee, Sug-Whan Kim, Ho-Soon Yang

Proc. SPIE. 7793, Optical System Alignment, Tolerancing, and Verification IV

KEYWORDS: Wavefronts, Optical alignment, Error analysis, Optical design, Mirrors, Tolerancing, Zernike polynomials, Optimization (mathematics), Optical components, Aerospace engineering

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Proceedings Article | 22 August 2009 Paper

Alignment of off-axis optical system with multi mirrors using derivative of Zernike polynomial coefficient

Yunjong Kim, Ho-Soon Yang, Sug-Whan Kim, Yun-Woo Lee

Proc. SPIE. 7433, Optical System Alignment, Tolerancing, and Verification III

KEYWORDS: Optical alignment, Wavefronts, Telescopes, Zernike polynomials, Optical components, Error analysis, Mirrors, Interferometry, Device simulation, Off axis mirrors

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Showing 5 of 16 publications

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