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Eunsung Park
(박은성)
Eunsung Park
(박은성)
MS-PhD Candidate
[2019 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Prof. Woo-Young Choi)
Email: pes7986@yonsei.ac.kr, backdmstjd@naver.com
Research Topics/Interests
CMOS-compatible single-photon avalanche diodes (SPADs)
Direct ToF (dToF) sensor systems based on CMOS SPADs
Back-illuminated (BI) 3D-stacked CMOS SPADs
Short-wave infrared (SWIR) SPADs
Hyo-Sung
Park
(박효성)
Hyo-Sung
Park
(박효성)
MS-PhD Candidate
[2020 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Prof. Woo-Young Choi)
Email: phs0817@yonsei.ac.kr, lionel_m@naver.com
Research Topics/Interests
CMOS SPAD pixel circuits and arrays
Time-to-digital converters (TDCs)
Single-photon avalanche diodes (SPADs)
RGB-D Sensors and Physical AI
Hyun-Seung Choi
(최현승)
Hyun-Seung Choi
(최현승)
MS-PhD Candidate
[2021 - Present] Yonsei University - KIST association course
(Co-Advisor: Prof. Youngcheol Chae)
[2020 - 2021] Undergraduate researcher with ADS Lab
Email: keithch@naver.com, keithch@yonsei.ac.kr, keithch@kist.re.kr
Research Topics/Interests
CMOS SPAD pixel circuits and arrays
Equivalent circuit modeling for CMOS SPADs
Single-photon avalanche diodes (SPADs)
SPAD-based indirect ToF (iToF) sensors
Doyoon Eom
(엄도윤)
Doyoon Eom
(엄도윤)
PhD Candidate
[2024 - Present] Yonsei University - KIST association course
(Co-Advisor: Prof. Woo-Young Choi)
Researcher
[2023 - 2024] Researcher with ADS Lab
M.S. Candidate
[2021 - 2023] Yonsei University - KIST association course
(Co-Advisor: Prof. Woo-Young Choi)
Graduate Researcher
[2020 - 2021] Graduate researcher with ADS Lab
Email: dja1995@yonsei.ac.kr, dja1995@kist.re.kr
Research Topics/Interests
Efficiency improvement techniques for CMOS SPADs
Back-illuminated CMOS SPADs
Device simulation (TCAD)
Avalanche-mode LEDs (AM-LEDs)
Joo-Hyun Kim
(김주현)
Joo-Hyun Kim
(김주현)
PhD Candidate
[2023 - Present] Yonsei University - KIST association course
(Co-Advisor: Prof. Woo-Young Choi)
Email: mark777k@yonsei.ac.kr, mark777k@kist.re.kr
Research Topics/Interests
Single-photon avalanche diodes (SPADs) in standard CMOS technology
Novel SPAD structures for performance enhancement
SPAD pixel circuits
dToF/LiDAR systems
Seyoung Yook
(육세영)
Seyoung Yook
(육세영)
MS-PhD Candidate
[2023 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Prof. Woo-Young Choi)
Graduate Researcher
[2023.01. - 09.] Graduate researcher with ADS Lab
Undergraduate Researcher (Intern)
[2022.09. - 12.] Undergraduate researcher with ADS Lab
Email: sy.yook127@yonsei.ac.kr, sy.yook127@gmail.com
Research Topics/Interests
Single-photon avalanche diodes (SPADs) in standard CMOS technology
Performance improvement of CMOS SPADs
Reliability and lifetime evaluation of CMOS SPADs
Silicon photomultipliers (SiPMs) based on standard CMOS technology
Doo-Hee Son
(손두희)
Doo-Hee Son
(손두희)
M.S. Candidate
[2024 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Prof. Woo-Young Choi)
Undergraduate Researcher (Intern)
[2022.08. - 2023.02.] Undergraduate researcher with ADS Lab
Email: dewy@yonsei.ac.kr, doooheee@yonsei.ac.kr
Research Topics/Interests
Characterization and performance improvement of CMOS SPADs
Rad-hard SPADs (radiation-tolerant SPADs)
Single-photon detectors for space and biomedical applications
Jae-Hyeon An
(안재현)
Jae-Hyeon An
(안재현)
M.S. Candidate
[2025 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Dr. Dae-Hwan Ahn)
Email: fff0807@naver.com
Research Topics/Interests
Integration of a photodetector on a waveguide
Heterogeneous integration of photonic devices on electronic devices using wafer bonding technology
Jonghyuck Ahn
(안종혁)
Jonghyuck Ahn
(안종혁)
MS-PhD Candidate
[2025 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Prof. Woo-Young Choi)
Email: ahn4711948@yonsei.ac.kr
Research Topics/Interests
High-speed Mach-Zehnder modulators
Micro-ring modulators
Silicon photonics & co-packaged optics (CPO)
Myung-Jun Lee
(이명준)
Myung-Jun Lee
(이명준)
MS-PhD Candidate
[2026 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Prof. Youngcheol Chae)
Email: eric9904@yonsei.ac.kr, eric9904@naver.com
Research Topics/Interests
Single-photon avalanche diodes (SPADs)
CMOS SPAD pixel circuits and arrays
Time-delay integration (TDI) line sensors
Myung Hyun Kang
(강명현)
Myung Hyun Kang
(강명현)
MS-PhD Candidate
[2026 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Prof. Woo-Young Choi)
Email: 2000qazwsx@yonsei.ac.kr
Research Topics/Interests
Silicon photonics
Optical-interconnect systems
Ring and Mach-Zehnder modulators
Chang Eok Kim
(김창억)
Chang Eok Kim
(김창억)
MS-PhD Candidate
[2026 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Prof. Woo-Young Choi)
Email: ckddjr54@yonsei.ac.kr, ckddjr54@naver.com
Research Topics/Interests
Monolithic optical receivers
CMOS avalanche photodetectors
Jungwoo Kang
(강정우)
Jungwoo Kang
(강정우)
M.S. Candidate
[2026 - Present] Electrical and Electronic Engineering, Yonsei University
(Co-Advisor: Dr. Jae-Hoon Han)
Email: Kju758874@gmail.com
Research Topics/Interests
Silicon photonic device design based on waveguide structure and optical signal control
Structural and electrical modeling of advanced semiconductor devices
Performance Improvement of photonic integrated circuits (PICs)
Mingi Woo
(우민기)
Mingi Woo
(우민기)
Undergraduate Researcher (Intern)
[2025.07. - Present] Undergraduate researcher with ADS Lab
Email: wmg324@naver.com
Research Topics/Interests
Single-photon avalanche diodes (SPADs)
Integrated circuits
Junho Park
(박준호)
Junho Park
(박준호)
Undergraduate Researcher (Intern)
[2025.09. - Present] Undergraduate researcher with ADS Lab
Email: tom3447@yonsei.ac.kr
Research Topics/Interests
Superconducting nanowire single-photon detector (SNSPD) readout circuits
Quantum computing
Min Tae Woo
(우민태)
Min Tae Woo
(우민태)
Undergraduate Researcher (Intern)
[2026.01. - Present] Undergraduate researcher with ADS Lab
Email: jolibee7@yonsei.ac.kr
Research Topics/Interests
CMOS single-photon avalanche diodes (SPADs)
Jeong Hyeok Park
(박정혁)
Jeong Hyeok Park
(박정혁)
Undergraduate Researcher (Intern)
[2026.01. - Present] Undergraduate researcher with ADS Lab
Email: jungh1014@naver.com, jungh1014@yonsei.ac.kr
Research Topics/Interests
CMOS-based semiconductor devices
Optical sensor devices and ToF sensor applications
Administrative Staff: Eun-Jung Chun (천은정)
Administrative Staff: Eun-Jung Chun (천은정)
Email: ejchun35@yonsei.ac.kr
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