Dr. Sangwon Hyun Profile

Dr. Sangwon Hyun

at Korea Basic Science Institute

SPIE Involvement:

Author

Publications (13)

Proceedings Article | 1 October 2024 Poster

A novel finishing method of the precision optics using a gas cluster ion beam

Aram Hong, Myoung Choul Choi, Sangwon Hyun, Tianyi Wang, Mourad Idir, Daewook Kim

Proceedings Volume PC13134, PC131340B (2024) https://doi.org/10.1117/12.3027378

KEYWORDS: Ion beams, Precision optics, Optical surfaces, Sputter deposition, Profiling, Polishing, Physical coherence, Mass spectrometry, Ions, Ion beam finishing

Proceedings Article | 1 October 2024 Presentation

Study on the new characteristics of optical system surface finishing using gas cluster ion beam

Myoung Choul Choi, Aram Hong, Sangwon Hyun, Mourad Idir, Tianyi Wang, Dae Wook Kim

Proceedings Volume PC13134, PC1313406 (2024) https://doi.org/10.1117/12.3027095

KEYWORDS: Surface finishing, Ion beams, Statistical analysis, Ion beam finishing, Etching, Beam diameter

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Proceedings Article | 6 October 2023 Poster

New method of polishing and fabrication for optical substrates using gas cluster ion beam

Aram Hong, Sangwon Hyun, Dong Jin Ku, Myoung Choul Choi

Proceedings Volume PC12677, PC126770K (2023) https://doi.org/10.1117/12.2676609

KEYWORDS: Polishing, Ion beams, Fabrication, Optical surfaces, Surface finishing, Sputter deposition, Mirror surfaces, Ions, Vacuum ultraviolet, Ultraviolet radiation

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Proceedings Article | 4 October 2023 Poster + Paper

Development of a table-top surface inspection system based on phase-measuring deflectometry

Sangwon Hyun, Kyesung Lee, Mingab Bog

Proceedings Volume 12672, 126720U (2023) https://doi.org/10.1117/12.2676601

KEYWORDS: Inspection, Optical surfaces, Deflectometry, Calibration, Displays, Cameras, 3D metrology, Prototyping, Phase measurement, Mirror surfaces

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Proceedings Article | 15 November 2019 Paper

Development of a reflective spiral phase plate based on MRF polishing

Min-Woo Jeon, Sang-Won Hyun, Seok-Kyeong Jeong, Jong-Gyun Kang, Woo-Jong Yeo, Geon-Hee Kim

Proceedings Volume 11175, 1117526 (2019) https://doi.org/10.1117/12.2536573

KEYWORDS: Spiral phase plates, Magnetorheological finishing, Reflectivity, Polishing, Surface finishing, Aluminum, Diamond turning, Mirror structures, Mirrors

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Proceedings Article | 15 November 2019 Paper

High precision interferometric measurement of freeform surfaces from the well-defined sub-aperture surface profiles

Sangwon Hyun, Soonkyu Je, Geon-Hee Kim

Proceedings Volume 11175, 111752B (2019) https://doi.org/10.1117/12.2536867

KEYWORDS: Interferometry, Precision measurement, Interferometers, Freeform optics, Calibration, Reliability, Off axis mirrors, Mirrors

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Proceedings Article | 15 November 2019 Paper

Compensation of thermal drift during the single-point diamond turning process based on the LSTM

Woo-Jong Yeo, Byeong-Jun Jeong, Seok-Kyeong Jeong, Jong-Gyun Kang, Sang-Won Hyun, Geon-Hee Kim, Won-Kyun Lee

Proceedings Volume 11175, 111752E (2019) https://doi.org/10.1117/12.2536897

KEYWORDS: Single point diamond turning, Data modeling, Thermal modeling, Precision diamond machining, Diamond, Neural networks, Evolutionary algorithms, Error analysis

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Proceedings Article | 23 August 2017 Paper

Removal of diamond turning marks with magneto-rheological finishing

Min-Woo Jeon, Sangwon Hyun, Byeong-Joon Jeong, I-Jong Kim, Geon-Hee Kim

Proceedings Volume 10371, 103710V (2017) https://doi.org/10.1117/12.2274028

KEYWORDS: Magnetorheological finishing, Surface finishing, Diamond turning, Surface roughness, Mirrors, Single point diamond turning, Off axis mirrors, Polishing, Freeform optics, Diamond machining

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Proceedings Article | 26 April 2016 Paper

Subaperture method for aspheric surface metrology using curvature data

SeongWon Lee, WooKyung Jeon, TaeJin Park, ByoungChang Kim, GeonHee Kim, SangWon Hyun, IJong Kim, Seunghyun Kim, ChangKyu Kim, HyungSuk Lee

Proceedings Volume 9890, 989018 (2016) https://doi.org/10.1117/12.2227961

KEYWORDS: Differential equations, Mathematical modeling, Freeform optics, Sensors, Reconstruction algorithms, Spherical lenses, Interferometers

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Proceedings Article | 12 October 2015 Paper

Aspheric surface reconstruction from curvature data along two orthogonal directions

ByoungChang Kim, SeoungWon Lee, GeonHee Kim, SangWon Hyun

Proceedings Volume 9633, 96332H (2015) https://doi.org/10.1117/12.2196063

KEYWORDS: Aspheric lenses, Reconstruction algorithms, Sensors, Photovoltaics, Computer simulations, Differential equations, Metrology, Spherical lenses, Interferometers, Motion measurement

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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 | 1 July 2015 Paper

Design and performance analysis of front end optical instrument for coastal water remote sensing

Eunsong Oh, Hyukmo Kang, Sangwon Hyun, Geon-Hee Kim, YoungJe Park, Jong-Kuk Choi, Sug-Whan Kim

Proceedings Volume 9655, 96553Z (2015) https://doi.org/10.1117/12.2185287

KEYWORDS: Sensors, Signal to noise ratio, Mirrors, Unmanned aerial vehicles, Remote sensing, Ocean optics, Modulation transfer functions, Spatial resolution, Tolerancing, Satellites

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Proceedings Article | 2 August 2014 Paper

A study on ultra-precision machining technique for Al6061-T6 to fabricate space infrared optics

Geun-man Ryu, Gil-jae Lee, Sang-won Hyun, Ha-yeong Sung, Euisik Chung, Geon-hee Kim

Proceedings Volume 9143, 91434Z (2014) https://doi.org/10.1117/12.2055361

KEYWORDS: Surface roughness, Infrared radiation, Astronomical imaging, Cryogenics, Mirrors, Optics manufacturing, Error analysis, Fabrication, Nanolithography, Space mirrors

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Showing 5 of 13 publications

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