Dr. Jeong-Yeol Han Profile

Dr. Jeong-Yeol Han

Principal Researcher at Korea Astronomy and Space Science Institute

SPIE Involvement:

Conference Program Committee | Author

Area of Expertise:

Optics , Optical fabrication , Process optimization , Optical design , Optical systems development

Websites:

Personal Website | Company Website

Publications (27)

Proceedings Article | 23 August 2024 Poster + Paper

Characteristics of initial tool influence function on cordierite substrates

Jiwoo Lee, Jeong-Yeol Han, Myung Cho, Kevin Ho, Shinobu Nagata, Hidehito Himeno, Masatsugu Kamiura

Proceedings Volume 13092, 130923W (2024) https://doi.org/10.1117/12.3020612

KEYWORDS: Cordierite, Silicon carbide, Polishing, Optical surfaces, Telescopes, Surface finishing, Mirrors, Optics manufacturing, Astronomy, Space telescopes

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Proceedings Article | 5 October 2023 Presentation

Unveiling new frontiers: conceptual design of optical and EUV telescopes with instruments for the L4 mission

Jeong-Yeol Han, Jeongyeop Park, Sung-Hong Park, Eun-Kyung Lim, Donguk Song, Kyung-Suk Cho, Junga Hwang, Seonghwan Choi, Rok-Soon Kim, Jungjoon Seough, JongDae Sohn, Jihun Kim

Proceedings Volume 12676, 126760L (2023) https://doi.org/10.1117/12.2677366

KEYWORDS: Telescopes, Extreme ultraviolet, Design and modelling, Equipment, EUV optics, Space weather, Solar processes, Remote sensing, Optical telescopes, Magnetism

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Proceedings Article | 4 October 2023 Poster + Paper

Dynamic tool influence function on SiC mirror surfaces for space optical telescopes using orthogonal velocity tool

Jeong-Yeol Han, Mingab Bog, Jiwoo Lee, Ju-Hyun Suk

Proceedings Volume 12677, 126770T (2023) https://doi.org/10.1117/12.2677871

KEYWORDS: Silicon carbide, Mirror surfaces, Surface finishing, Polishing, Optical telescopes, Space telescopes, Space mirrors, Sampling rates, Optical surfaces, Mirrors

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Proceedings Article | 4 October 2023 Presentation + Paper

Thermo-elastic analysis of various lateral flexure bonding applications

Youra Jun, Il Kweon Moon, Myung Cho, Jeong-Yeol Han

Proceedings Volume 12677, 126770M (2023) https://doi.org/10.1117/12.2677887

KEYWORDS: Mirrors, Bending stress, Gemini Observatory, Deformable mirrors, Thermal deformation, Titanium, Telescopes, Materials properties, Thermoelasticity, Analytical research

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Proceedings Article | 4 October 2023 Poster + Paper

On-orbit thermal control system design and analysis for space optical telescope ROKITS

Jaegun Yoo, Jeong-Yeol Han, Hui-Kyung Kim, Woo Kyoung Lee, Seonghwan Choi, Dukhang Lee, Chanhaeng Lee, Daewook Kim

Proceedings Volume 12676, 1267611 (2023) https://doi.org/10.1117/12.2676760

KEYWORDS: Thermal analysis, Design and modelling, Thermal modeling, Fused deposition modeling, Solar energy, Optical telescopes, Optical surfaces, Space operations, Satellites, Control systems

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Proceedings Article | 3 October 2022 Poster + Paper

Parametric circular aperture segmentation formalism

Jeong-Yeol Han, Sukmock Lee, Daewook Kim

Proceedings Volume 12221, 1222112 (2022) https://doi.org/10.1117/12.2632865

KEYWORDS: Point spread functions, James Webb Space Telescope, Mirrors, Telescopes, Image segmentation, Diffraction, Astronomy, Segmented mirrors, Astronomical imaging, Stellar astronomy

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Proceedings Article | 29 August 2022 Poster

Design and analysis of the SiC solar telescope for extreme environments

Jihun Kim, Seonghwan Choi, Jeong-Yeol Han, Yunjong Kim, Ji-Hye Baek, Jongyeob Park, Heesu Yang, Sujin Kim, Young-Soo Kim, Jaegun Yoo, Youra Jun, Bi-Ho Jang, Il Kweon Moon, Dohoon Kim, Minkyum Kim, Gwanghui Jeong, Myung Cho

Proceedings Volume 12182, 1218233 (2022) https://doi.org/10.1117/12.2628857

KEYWORDS: Solar telescopes, Optical instrument design, Silicon carbide, Telescopes, Mirrors, Bridges, Off axis mirrors, Light scattering, Tolerancing, Temperature metrology

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Proceedings Article | 10 September 2019 Presentation

Initial polishing machine control model to determine target TIF depth on SiC mirror surfaces (Conference Presentation)

Jeong-Yeol Han, Suyeon Cha, Dohoon Kim, Myung Cho

Proceedings Volume 11101, 111010A (2019) https://doi.org/10.1117/12.2529836

KEYWORDS: Silicon carbide, Mirrors, Surface finishing, Polishing, Polishing equipment, Process control, Reliability, Head

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SPIE Journal Paper | 20 May 2019 Open Access

Parametric geometry analysis for circular-aperture off-axis parabolic mirror segment

Jeong-Yeol Han, Sukmock Lee, Dae Wook Kim

JATIS, Vol. 5, Issue 02, 024010, (May 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.024010

KEYWORDS: Mirrors, Off axis mirrors, Optics manufacturing, Astronomical telescopes, Astronomy, Optical engineering, Optical fabrication, Optical alignment, Astronomical imaging, Design for manufacturability

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SPIE Journal Paper | 19 October 2018 Open Access

Methods of defining circular off-axis aspheric mirrors

Jeong-Yeol Han, Sukmock Lee

JATIS, Vol. 4, Issue 04, 044002, (October 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.4.044002

KEYWORDS: Mirrors, Aspheric lenses, Aspheric optics, James Webb Space Telescope, Mirror pointing, Telescopes, Solids, Astronomical telescopes, Astronomy, Geometrical optics

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Proceedings Article | 14 September 2018 Paper

Methods to define circular off-axis aspheric segment mirrors

Jeong-Yeol Han, Sukmock Lee

Proceedings Volume 10742, 107421I (2018) https://doi.org/10.1117/12.2322707

KEYWORDS: Mirrors, Aspheric optics, Space telescopes, Telescopes, Off axis mirrors, Astronomy

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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

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 | 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 Paper

Geometry for off-axis parabolic mirrors

Jeong-Yeol Han, Sukmock Lee

Proceedings Volume 10706, 107066M (2018) https://doi.org/10.1117/12.2318256

KEYWORDS: Mirrors, Off axis mirrors, Manufacturing, Astronomy, Solar telescopes, Space mirrors

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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 | 16 October 2017 Paper

Study on a magneto-rheological removal process of periodic turning marks

Min-Woo Jeon, Byeong-Joon Jeong, Sang-Won Hyun, Kye-Sung Lee, Jeong-Yeol Han, Geon-Hee Kim

Proceedings Volume 10448, 104482H (2017) https://doi.org/10.1117/12.2279870

KEYWORDS: Surface finishing, Single point diamond turning, Magnetorheological finishing, Polishing, Surface roughness, Nickel

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Proceedings Article | 22 July 2016 Paper

Development of the fast steering secondary mirror assembly of GMT

Sungho Lee, Myung Cho, Chan Park, Jeong-Yeol Han, Ueejeong Jeong, Yang-noh Yoon, Je Heon Song, Byeong-Gon Park, Christoph Dribusch, Won Hyun Park, Youra Jun, Ho-Soon Yang, Il-Kwon Moon, Chang Jin Oh, Ho-Sang Kim, Kyoung-Don Lee, Robert Bernier, Chris Alongi, Andrew Rakich, Paul Gardner, Lee Dettmann, Wylie Rosenthal

Proceedings Volume 9912, 991241 (2016) https://doi.org/10.1117/12.2233710

KEYWORDS: Mirrors, Telescopes, Optical fabrication, Telescopes, Control systems, Prototyping, Control systems design, Space telescopes, Surface finishing, Manufacturing, Profilometers

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Proceedings Article | 12 October 2015 Paper

Ultra precision machining technique of off-axis optics for coastal water remote sensing

Min-Woo Jeon, Sang-Won Hyun, Jeong-Yeol Han, Geon-Hee Kim

Proceedings Volume 9633, 963325 (2015) https://doi.org/10.1117/12.2196068

KEYWORDS: Mirrors, Off axis mirrors, Aspheric optics, Surface roughness, Remote sensing, Diamond machining, Ocean optics, Sensors, Fabrication, Radium

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Proceedings Article | 8 September 2015 Paper

Material removal characteristics of orthogonal velocity polishing tool for efficient fabrication of CVD SiC mirror surfaces

Hyunju Seo, Jeong-Yeol Han, Sug-Whan Kim, Sehyun Seong, Siyoung Yoon, Kyungmook Lee, Haengbok Lee

Proceedings Volume 9575, 95750N (2015) https://doi.org/10.1117/12.2188805

KEYWORDS: Polishing, Silicon carbide, Surface finishing, Chemical vapor deposition, Mirrors, Polishing equipment, Data conversion, Data processing, Patents, Data analysis

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Proceedings Article | 8 July 2014 Paper

Design and early performance of IGRINS (Immersion Grating Infrared Spectrometer)

Chan Park, Daniel Jaffe, In-Soo Yuk, Moo-Young Chun, Soojong Pak, Kang-Min Kim, Michael Pavel, Hanshin Lee, Heeyoung Oh, Ueejeong Jeong, Chae Kyung Sim, Hye-In Lee, Huynh Anh Nguyen Le, Joseph Strubhar, Michael Gully-Santiago, Jae Sok Oh, Sang-Mok Cha, Bongkon Moon, Kwijong Park, Cynthia Brooks, Kyeongyeon Ko, Jeong-Yeol Han, Jakyoung Nah, Peter Hill, Sungho Lee, Stuart Barnes, Young Sam Yu, Kyle Kaplan, Gregory Mace, Hwihyun Kim, Jae-Joon Lee, Narae Hwang, Byeong-Gon Park

Proceedings Volume 9147, 91471D (2014) https://doi.org/10.1117/12.2056431

KEYWORDS: Sensors, Spectrographs, Cameras, K band, Spectral resolution, Infrared spectroscopy, Cryogenics, Mirrors, Optical design, Telescopes

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Proceedings Article | 18 December 2012 Paper

Alignment based on a no adjustment philosophy for the Immersion Grating Infrared Spectrometer (IGRINS)

Jeong-Yeol Han, In-Soo Yuk, Kyeongyeon Ko, Heeyoung Oh, Jakyoung Nah, Jae Sok Oh, Chan Park, Sungho Lee, Kang-Min Kim, Moo-Young Chun, Daniel Jaffe, Soojong Pak, Michael Gully-Santiago

Proceedings Volume 8550, 85501B (2012) https://doi.org/10.1117/12.981169

KEYWORDS: Mirrors, Infrared radiation, Spherical lenses, Infrared spectroscopy, Temperature metrology, Refractive index, Infrared imaging, Spectroscopy, Cameras, Interferometers

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Proceedings Article | 26 May 2011 Paper

Imaging EO/IR optical system for long range oblique photography

Jeong-Yeol Han, Sergey Marchuk, Hooshik Kim, Chang-Woo Kim, Kwang-Woo Park

Proceedings Volume 8020, 802009 (2011) https://doi.org/10.1117/12.886696

KEYWORDS: Infrared imaging, Space telescopes, Telescopes, Imaging systems, Image quality, Infrared telescopes, Photography, Mirrors, Modulation transfer functions, Optical imaging

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Proceedings Article | 26 August 2010 Paper

Conic constant trade-off study in Cassegrain-type telescopes with a field corrector

Jeong-Yeol Han, Jose Sasian, Jesús González

Proceedings Volume 7787, 778702 (2010) https://doi.org/10.1117/12.865608

KEYWORDS: Mirrors, Telescopes, Space telescopes, Chemical elements, Optical instrument design, Solids, Astronomical telescopes, Optical design, Aspheric lenses, Monochromatic aberrations

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Proceedings Article | 28 June 2006 Paper

KASINICS: KASI Near-Infrared Camera System

Sang-Mok Cha, Ho Jin, In-Soo Yuk, Sungho Lee, Uk-Won Nam, Bongkon Moon, Seungwon Mock, Jeong-Yeol Han, Dea-Hee Lee, Jang-Hyun Park, Jae-Mann Kyeong, Soojong Pak, Geon-Hee Kim, Chun-Hwey Kim

Proceedings Volume 6269, 62694W (2006) https://doi.org/10.1117/12.669903

KEYWORDS: Sensors, Telescopes, Mirrors, Cameras, Imaging systems, Space telescopes, Astronomy, Electronics, Near infrared, Infrared cameras

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Showing 5 of 27 publications

Conference Committee Involvement (3)

UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts XII

3 August 2025 | San Diego, California, United States

UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts XI

20 August 2023 | San Diego, California, United States

Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems IV

12 August 2019 | San Diego, California, United States

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