Bio Optics and Acoustics Laboratory @ POSTECH
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Director

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Prof. Chulhong Kim [email protected]

Dr. Chulhong Kim studied for his Ph.D. degree under Prof. Lihong Wang at Washington University in St. Louis. He currently holds Namgo Chair Professorship, Young Distinguished Professorship, and Mueunjae Chair Professorship of School of Convergence Science and Technology (Head), Convergence IT Engineering (Department Chair), Electrical Engineering, Mechanical Engineering, and Medical Science and Engineering (Program Chair) at Pohang University of Science and Technology in Republic of Korea. He is the Director of Medical Device Innovation Center supported by Ministry of Education and the Vice-Director of POSTECH-CATHOLIC BioMed Engineering. He is also the Chief Executive Officer of Opticho Inc., a spinoff company to commercialize preclinical and clinical photoacoustic imaging systems. He was the recipients of the 2022 Korean Presidential Award from Ministry of SMEs and Startups, the Science and Technology Award of the Month for December 2021 by the Korean Minister of Science and ICT, the LINA+50 Creative Innovation Award, the 2020-2021 IEEE EMBS Distinguished Lecturer, the 2017 IEEE EMBS Early Career Achievement Award, the 2017 KAST Young Scientist Award, etc. He has published 277 peer-reviewed journal articles (Nature and Science portfolio journals, PNAS, Chemical Reviews, Radiology, IEEE Transactions, etc). His Google Scholar h-index and citations have reached 83 and over 22,600, respectively. His group’s works have been selected for the 1st positions of the USenhance and TDSC-ABUS Challenges in the 26th International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI 2023), the 2022/2025 Photoacoustics Journal and TomoWave Best Paper Award and Seno Medical Best Paper Award Finalists continuously in Photons Plus Ultrasound Conference (Photonics West, SPIE), the 2020 Hitachi High-tech Best Presentation Award in High Speed Imaging and Spectroscopy Conference (Photonics West, SPIE), and the 2020 Microscopy Today Innovation Award. He has currently served as a Section Editor of Photoacoustics Journal (premier journal in the field), a Senior Area Editor of IEEE T. Medical Imaging, an Associate Editor of IEEE T. Biomedical Engineering, an Editorial Board Member of Biomedical Engineering Letters, etc. He is also elected as a member of the National Academy of Engineering of Korea (NAEK) and Young Korean Academy of Science and Technology (Y-KAST). He is a Fellow of the IEEE, SPIE, OPTICA, IAMBE and AIMBE.

Researcher

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Ki Jong Lee

[email protected]

Ki Jong Lee is a senior researcher in Department of Convergence IT Engineering at Pohang University of Science and Technology. Ki Jong was born in Seoul, received a M.S. degree in Electrical & Electronics engineering from KAIST (Korea Advanced Institute of Science and Technology) in 1992. His research interests are the development of novel biomedical imaging techniques and systems including photoacoustic & ultrasound imaging.

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Jin Young Kim

[email protected]

Dr. Jin Young Kim received a Ph.D. in Department of Mechanical Engineering at Pohang University of Science and Technology (POSTECH). He is working at POSTECH as a research assistant professor. His research interests are development of novel photoacoustic imaging, multimodal optical imaging systems using  MEMS devices, and their clinical applications.

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Sehui Kim

[email protected]

Sehui Kim is a researcher in the convergence IT engineering at POSTECH. She received master's degree in electronics engineering from Kyungpook national university. Her research interests are development of photoacoustic imaging, multimodal optical imaging systems using  Optical coherence tomography (OCT) and photoacoustic microscopy (PAM).

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 Joongho  Ahn

[email protected]

Joongho is a Research Assistant Professor in the Convergence IT Engineering department. He received his B.S in electronic engineering from Kyungbuk National University and Ph.D. in Convergence IT Engineering at POSTECH. His research interest is electronic components in ultrasound imaging system.

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Jaewoo Kim

[email protected]

Jaewoo kim is a Research Assistant Professor in the Convergence IT Engineering department. He received his B.S in electronic engineering from Kyungbuk National University and Ph.D. in Convergence IT Engineering at POSTECH.


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Seonghee Cho

[email protected]

SeongHee Cho is a Research Assistant Professor in the Electrical Engineering department. SeongHee completed his B.H.S. in Dental Laboratory Science and Engineering and B.E. in Biomedical Engineering at Korea University, and finished his Ph.D. in School of Interdisciplinary Bioscience and Bioengineering at POSTECH. SeongHee is interested in biological signals exited by light. He loves drawing, and graphical designing.

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Moongyu Han

[email protected]

Moongyu Han is a Postdoctoral Research Associate in the Covergence IT Engineering Department at POSTECH. He completed his B.S. in Mechanical Engineering at Ajou University in 2017 and his PhD in Convergence IT Engineering at POSTECH in 2024. His research interests include clinical photoacoustic imaging.

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Dasom Heo

[email protected]

Dasom Heo is a postdoctoral research associate of Convergence IT Engineering at POSTECH. She completed her BS (2017) and MS-PhD (2025) in Mechanical Engineering at POSTECH. She is interested in the fluidics, biomedical high-frequency ultrasound application, and stimulated application of the ultrasound. She develops miniaturized ultrasound transducers which size is under 1 mm.

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Sinyoung Park

[email protected]

Sinyoung Park is a PostDoc in Electrical Engineering at POSTECH. He completed his B.S. in Electronic Engineering at Kyungpook National University in 2019, M.S. in POSTECH in 2021, and Ph.D. in POSTECH in 2026. His research interests are clinical  photoacousitc tomography including development of FPGA based hardware system. 

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Hyunsu Jeong

[email protected]


Hyunsu Jeong is a PostDoc in Artificial Intelligence (GSAI) at POSTECH. He received MS in Electrical Engineering and Computer Sciences (EECS) from GIST in 2019 and PhD in GSAI from POSTECH in 2026. He worked as a research associate at Asan Medical Center (AMC) in 2021. His research topics include self-supervised learning and generative adversarial network for segmentation, enhancement and synthesis of medical imaging.

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​Dongyoung Jeong

[email protected]

Dongyoung Jeong is a PostDoc in Medical Science & Engineering (MED) at POSTECH. He is a medical doctor for neurology and worked as a resident at Asan Medical Center(AMC). He completed his B.S. in biotechnology at Konkuk University, his MS in medicine at Pusan National University, PhD in medicine at Ulsan University, PhD in MED at POSTECH (2026). His research interests include deep learning and image processing for biomedical applications and Ultrafast ultrasound Doppler imaging. 

Graduate Student
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Donggyu Kim

[email protected]

​Donggyu Kim is an M.S.-Ph.D. candidate in the Convergence IT Engineering at POSTECH. He completed his B.S. in Mechanical Engineering at POSTECH in 2021. His research interests include the fabrication of transparent ultrasound transducer and its applications.

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Minsu Kim

[email protected]

Minsu Kim is an unified M.E - Ph.D. candidate in the Convergence IT Engineering at POSTECH. He completed his B.S. in Convergence IT Engineering at POSTECH in 2020. His research interests include transparent ultrasound transducer, fast tunable laser, and photoacoustic spectroscopy.

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Jiwoong Kim

[email protected]

​Jiwoong Kim is an MS-PhD candidate in the IT Engineering at POSTECH. He received his B.S. in Mechanical Engineering at POSTECH in 2020. His research interests are 3D Photoacoustic/Ultrasound biomedical imaging techniques and their clinical applications.

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Minsik Sung

[email protected]

​Minsik Sung completed his B.S. in Mechanical Engineering at POSTECH in 2021. Now, he is an MS-PhD candidate in Mechanical Engineering at POSTECH.

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Junho Ahn

[email protected]

​Junho Ahn is a M.S.-Ph.D. candidate in Electronic Engineering at POSTECH. He completed his B.S. in Physics at POSTECH in 2017.

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Mingyu Ha

[email protected]

Mingyu Ha completed his B.S in Mechanical Engineering at POSTECH in 2021 and now a MS-PhD candidate in the Convergence IT Engineering.

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Chiho Yoon

[email protected]

​Chiho Yoon completed his B.S. in Electronic Engineering at Kyungbook National University. And now he is an M.S. candidate in Electrical Engineering at POSTECH. His research interest is US deep learning for image enhancement.

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Eunwoo Park

[email protected]

Eunwoo Park is a Ph.D. candidate in Convergence IT Engineering at POSTECH. He received B.S. and M.S. degrees in Mechanical Engineering from Dankook University in 2016 and 2017, respectively. He worked as a research associate at Advanced Photonics Research Institute, GIST (2017–2021). His research interests include developing novel-biomedical imaging systems.

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Donghyun Lee

[email protected]

Donghyun Lee is a M.S.-Ph.D. candidate in the Convergence IT Engineering. He received his B.S. in Mechanical Engineering at POSTECH in 2021. His research interests include the development of Ultrasound-Photoacoustic imaging system and its clinical applications.

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Hyunhee Kim

[email protected]


Hyunhee Kim is a PhD candidate in Covergence IT Engineering at POSTECH. She received her B.S. in Electrical Communication Engineering at Hanyang University and M.S. in School of Interdisciplinary Bioscience and Bioengineering at POSTECH. Her research interests include clinical application of ultrasound and photoacoustic diagnostic imaging. 

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Sunghun Nam

[email protected]


Sunghun Nam received his B.S. degree in electronic engineering from POSTECH in 2022, now a M.S.-Ph.D. candidate in electronic engineering. His research interests include clinical application of 3D photoacoustic imaging and development of Photoacoustic-Ultrasound imaging system.

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Minseong Kim

[email protected]


Minseong Kim is a M.S. candidate in Mechanical Engineering at POSTECH. He completed his B.S. in Mechanical Engineering at Postech in 2022.

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Jinseok Heo
 
[email protected]
 
Jinseok Heo is a M.S. – Ph.D. candidate in Electrical Engineering at POSTECH. He received his B.S. degree in Electrical Engineering from POSTECH, 2022. His research interests include the development of 3D Ultrasound-Photoacoustic imaging system and its clinical applications.

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Peeyush Malik

[email protected]

Peeyush Malik is an graduate student in the Department of Medical Science and Engineering. He completed his MBBS in 2020 and is currently pursuing Masters in Medical Technology in Indian Institute of Technology, Kharagpur.

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Seiyon Lee

[email protected] 

​Seiyun Lee completed his B.S in Chemical Engineering at Kyungpook National University. And now he is a part-time M.S candidate in the Convergence IT Engineering. He is also researcher of Opticho Inc. Ltd., working for ultrasound software development. His research topics include ultrasound and computing parallel processing for ultrasound imaging.

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Jong-Ryul Park

[email protected]


Jong-Ryul Park received his B.S. degree in electrical and electronics engineering(EE) in 2013 with M.S. degree in electronics and computer engineering(ECE) in 2015 from Sungkyunkwan University. He has joined Bigdata-AI Research Laboratory at Onycom inc. as a software developer since 2021, and as a Ph.D candidate in Medical Science and Engineering at POSTECH since 2023.

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Hyunseo Jeon

[email protected]


Hyunseo Jeon is an MS-PhD candidate in the Convergence IT Engineering at POSTECH. He received his B.S. in Mechanical Engineering at POSTECH in 2023. His research interests are 3D Photoacoustic/Ultrasound biomedical imaging techniques and their clinical applications.

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Seunghun Oh

[email protected]


Seunghun Oh is a M.S. candidate in major of Medical Science Engineering(MSE), Graduate School of Convergence Science and Technology(SCST). He received his B.S. degree in Statistics, Computer Science & Electrical Engineering(CSE) from Hankuk University of Foreign Studies in 2024. His research interests include various applications of deep learning such as self-supervised learning and diffusion model in medical fields.

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Hyoseok Choi

[email protected]

​Hyoseok Choi is an M.S. candidate in Covergence IT Engineering at POSTECH. He completed his B.S. in Material Science & Engineering at Yeungnam University in 2020. His research interests include developing of photoacoustic imaging, fabrication of ultrasound transducer and their clinical applications.

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Donghyun Kim
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[email protected]
 

Donghyun Kim received his B.S. degree in Optometry from the Daegu Catholic University, Republic of Korea, in 2024. He is currently pursuing a M.S. degree in Medical Science Engineering (MED) at Pohang University of Science and Technology (POSTECH). His research interests include the development of novel biomedical imaging techniques, photoacoustic microscopy and ultrasound imaging.

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Chaeyeon Kim

[email protected]


Chaeyeon Kim is an M.S-Ph.D. candidate in Electrical Engineering at POSTECH, specializing in Ultrafast Ultrasound Imaging and its clinical applications. She received her B.S. degree in Electrical Engineering  from POSTECH in 2025, which included international exchange program at RWTH Aachen University, Germany (Sep 2023-Feb 2024). 

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Seongjun Lim

[email protected]


Seongjun Lim received his B.S. degree in Electronic Engineering from Kyungpook National University in 2025. He is currently pursuing his M.S.-Ph.D. degree in Convergence IT Engineering at POSTECH. His research interests include the fabrication of transparent ultrasound transducers and their applications.

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Dongho Kim

[email protected]

Dongho Kim received his B.S. degree in Electrical and Information Engineering from Seoul National University of Science and Technology in 2024. He is currently pursuing his M.S.-Ph.D. degree in Convergence IT Engineering at POSTECH. His research interests include the clinical application and system development of ultrasound and photoacoustic diagnostic imaging.

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Minjun Lee

[email protected]


​Minjun Lee is a Ph.D. student in Electrical Engineering at POSTECH. He received his B.S. in Data Science and Big Data Engineering from Beijing Institute of Technology (BIT) in 2023, and his M.S. in Computer Science and Engineering from BIT in 2025. His research interests focus on medical AI and computational imaging, with an emphasis on photoacoustic imaging and deep learning–based super-resolution and reconstruction methods for vascular and functional imaging.

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Hyerin Kim

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​Hyerin Kim received her B.S. degree in Molecular Biotechnology from Ghent University in 2024. She is currently pursuing her M.S. degree in Medical Science and Engineering (MED) at POSTECH. Her research interests include ultrasound-based biomedical imaging techniques and their clinical applications.

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Junjae Lee

[email protected]


Junjae Lee received his B.S. degree in Mechanical Engineering and Control Engineering from Handong Global University in 2026. He is currently pursuing his M.S.-Ph.D. degree in Mechanical Engineering at POSTECH. His research interests include ultrafast ultrasound imaging and its clinical applications.

Undergraduate Student

Group Alumni

Doctoral Students

Period Name Placement
08/2013–08/2015 Jinyoung Kim, ME at POSTECH Res. Assist. Prof. at POSTECH and CTO at Opticho
02/2013–02/2017 Jeesu Kim, EE at POSTECH PostDoc at POSTECH, Visiting PostDoc at Stanford Univ. and then Associate Prof. at Pusan Nat. Univ.
08/2014–02/2019 Kyungjin Park, iBio at POSTECH PostDoc at POSTECH, and then Research Assist. Prof. at UNIST
03/2013–02/2020 Changhoon Choi, CiTE at POSTECH Samsung Electronics
06/2014–02/2020 Donghyun Lee, CiTE at POSTECH Samsung Electronics
07/2014–02/2020 Seunghyun Lee, CiTE at POSTECH Samsung Electronics, and then Epitone
09/2015–02/2020 Wonseok Choi, EE at POSTECH Researcher Assistant Professor, PIURI scholar at POSTECH, Visiting Scholar at Stanford Univ. and then Assist. Prof. at Catholic Univ. School of Medicine
09/2015–02/2020 Eunyeong Park, EE at POSTECH Researcher at POSTECH, Visiting Scholar at Stanford Univ., PostDoctoral Research Associate at Stanford Univ., and then Assistant Prof. of Bio & Brain Engineering at KAIST
09/2014–08/2020 Seungwan Jeon, CiTE at POSTECH Samsung Electronics
09/2015–02/2021 Byullee Park, CiTE at POSTECH PostDoc at POSTECH, Visiting Scholar at CALTECH, and then Assist. Prof. at SungKyunKwan Univ.
02/2016–02/2022 Jinwoo Baik, CiTE at POSTECH Samsung Electronics, and then Medical Doctor Student at CHA University Graduate School of Medicine
03/2015–02/2022 Seonghee Cho, iBio at POSTECH Research Assistant Professor at POSTECH
03/2015–02/2022 Jaewoo Kim, CiTE at POSTECH Research Assistant Professor at POSTECH
03/2016–02/2022 Joongho Ahn, CiTE at POSTECH Research Assistant Professor at POSTECH and Opticho
03/2017–08/2022 Jongbeom Kim, CiTE at POSTECH Samsung Electronics, and then Medical Doctor Student at CHA University Graduate School of Medicine
03/2017–02/2023 Jeongwoo Park, iBio at POSTECH PostDoc at POSTECH, and then Assistant Prof. at Kyungbook Nat. Univ.
03/2018–08/2023 Sungwook Choi, CiTE at POSTECH PostDoc at POSTECH, and then PostDoc at Stanford Univ.
08/2017–02/2024 Changyeop Lee, ME at POSTECH Samsung Medison
03/2018–02/2024 Donghyeon Oh, CiTE at POSTECH PostDoc at POSTECH and Visiting PostDoc at Caltech
03/2020–08/2024 Moongyu Han, CiTE at POSTECH Research Assistant Prof. at POSTECH and Opticho
03/2017–02/2025 Dasom Huh, ME at POSTECH PostDoc at POSTECH
03/2021-02/2026 Sinyoung Park, EE at POSTECH PostDoc at POSTECH
03/2022-02/2026 Hyunsoo Jeong, GSAI at POSTECH PostDoc at POSTECH
03/2023-02/2026 Dongyoung Jung, MED at POSTECH PostDoc at POSTECH

Research Faculty, Research Associates, Postdocs, and Staff

Period Name Placement
03/2011–02/2015 Mansik Jeon, Ph.D. from Kyungpook Nat. Univ. Assist. Prof. at Kyungpook Nat. Univ.
06/2014–01/2015 Chakyung Woo, MS from Kyungpook Nat. Univ.
08/2013–01/2016 Changho Lee, Ph.D. from Kyungpook Nat. Univ. PostDoc at Johns Hopkins Univ. and then Assist. Prof. at Chonnam Nat. Univ.
06/2016–10/2016 Seong Yeon Ju, MS from Chungbuk Nat. Univ.
02/2015–08/2017 Sungjo Park, Ph.D. from Kyungpook Nat. Univ. Principal Researcher, Laser Application Center, and then Researcher at POSTECH
11/2014–10/2018 Unsang Jung, Ph.D. from Kyungpook Nat. Univ.
08/2014–12/2018 Hyunjung Kim, Ph.D. from Daegu Catholic Univ.
03/2016–02/2019 Sunyoung Yu, Ph.D. from GIST
03/2017–02/2020 Jeesu Kim, Ph.D. EE at POSTECH PostDoc at POSTECH, Visiting PostDoc at Stanford Univ. and then Assist. Prof. at Pusan Nat. Univ.
03/2020–09/2021 Eunyeong Park, Ph.D. EE at POSTECH PostDoc at POSTECH, Visiting Scholar at Stanford Univ. PostDoc. at Stanford Univ., and then Assist. Prof. of Bio & Brain Engineering at KAIST
02/2022–09/2022 Jungi Lee, MS. EE at Kyungpook National Univ.
03/2020–02/2023 Wonseok Choi, EE at POSTECH Researcher Assistant Professor, PIURI scholar at POSTECH, Visiting Scholar at Stanford Univ. and then Assist. Prof. at Catholic Univ. School of Medicine
03/2021–02/2023 Byullee Park, CiTE at POSTECH PostDoc at POSTECH, Visiting Scholar at CALTECH, and then Assist. Prof. at SungKyunKwan Univ.
07/2020-08/2023 Jinge Yang, Ph.D. from University of Science and Electronics of China (UESTC), China PostDoc. at Caltech
10/2022-10/2023 Hyunseok Lim, MS. From Korea National University of Transportation. S. Korea Graduate Student at Ulsan University School of Medicine
05/2023-11/2023 Abhijeet Boragule, Ph.D. from Gwangjoo Institute of Science and Technology. S. Korea Samsung Research in India
08/2023-04/2024 Perleberg Bjarne, MS from POSTECH. S. Korea PhD student at Technical University of Munich
03/2023-08/2024 Jeongwoo Park, PhD from POSTECH. S. Korea PostDoc at POSTECH, and then Assistant Prof. at Kyungbook Nat. Univ.
08/2023-08/2024 Seongwook Choi, PhD from POSTECH. S. Korea PostDoc at POSTECH, and then PostDoc at Stanford Univ.
02/2021-01/2025 Sampa Misra, PhD from IIS. India Research Assistant Prof. at Ajou Univ.
02/2024-02/2026 Donghyeon Oh, PhD from POSTECH, S. Korea PostDoc at POSTECH, and then PostDoc at Caltech

Master Students

Period Name Placement
01/2011–05/2012 Sriranjani Ramasubramanian, BME at SUNY Buffalo
03/2015–08/2017 Sarah Park, CiTE at POSTECH Global PhD Fellowship (declined). SIEMENS Healthcare Korea
03/2015–02/2018 Yuhwan Jeong, EE at POSTECH TMaxSoft Korea
03/2018–02/2021 Hyeongsup Kim, iBio at POSTECH Deepnoid, VUNO, and then LG CNS Korea
03/2018–07/2021 Hyojin Kim, iBio at POSTECH SK Hynix Korea
03/2019–02/2022 Wangyu Kim, CiTE at POSTECH The Agency for Defense Development (ADD)
03/2021–08/2023 Chiho Yoon, EE at POSTECH PhD. candidate, EE at POSTECH
02/2022–08/2023 Sunghun Nam, EE at POSTECH PhD. candidate, EE at POSTECH
03/2021–08/2023 Perleberg Bjarne, EE at POSTECH Researcher, CiTE at POSTECH
02/2022–02/2024 Minsung Kim, ME at POSTECH PhD. candidate, CiTE at POSTECH
03/2023–02/2025 Yoonjae Cho, GSAI at POSTECH Intern at KIST
03/2023–08/2025 Seiyon Lee, CiTE at POSTECH PhD candidate, CiTE at POSTECH

Visitors and Other Trainees

Period Name Placement
08/2010–02/2013 Yang Li, BME at SUNY Buffalo Ph.D. at CALTECH and then Boston Consulting Group
08/2012–02/2013 Jaesok Yu, Biomedical Eng. SUNY Buffalo Ph.D. at Univ. Pittsburgh and then Assist. Prof. at DGIST
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