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Ph. D. in Physics

• Mar, 2020 - Aug, 2025
• Supervisor: Prof. Changyong Song
• Thesis: Development of functional coherent X-ray nanoimaging with deep-learning methods

B. Sc. in Physics, Minor in Electrical Engineering

• Mar, 2016 - Feb, 2020
• Magna cum laude
• Supervisor: Prof. Jee Hyun Choi & Prof. Changyong Song
• Thesis: A Comprehensive Evaluation of the Process of Copying a Complex Figure in Early- and Late-Onset Alzheimer Disease

Undergraduate Researcher

• Mar, 2019 - Feb, 2020
• Femtosecond X-ray Diffraction & Imaging Laboratory
• Supervisor: Prof. Changyong Song

Intern

• Jun - Aug, 2019
• Machine Learning Team, Columbus Center

Research Trainee

• Jun - Aug, 2018
• Convergence Research Center for Diagnosis, Treatment and Care System of Dementia
• Supervisor: Prof. Jee Hyun Choi

Intern

• Jun - Aug, 2017
• Accelerator PnA Team, Accelerator Business Division

Teaching Assistant

• 2021 Fall
• PHYS199: Freshman Research Participation

Teaching Assistant

• 2021 Spring
• PHYS103: General Physics Laboratory I

Teaching Assistant

• 2020 Fall
• PHYS250: Physics Laboratory I

Student Mentoring Program (SMP)

• 2019 Fall
• CSED101: Programming & Problem Solving

Student Mentoring Program (SMP)

• 2018 Fall
• CSED101: Programming & Problem Solving

Student Mentoring Program (SMP)

• 2018 Spring
• PHYS101: General Physics I

The 13th University Student Knowledge Volunteering KOSAF Camp

• Aug, 2016
• Topic: Tessellation & Four color theorem

POSTECHIAN Fellowship - Innovation

Presidential Science Scholarship

Graduate Student Excellent Paper Award

• Physical Review Research 2021, ACS Nano 2023, ACS Photonics 2024

Graduate Student Excellent Paper Award

• ACS Nano 2023

Best Poster Award

• The 35th Synchrotron Radiation Users' Workshop

Best Poster Award

• The 3rd PAL-XFEL Users' Meeting

Best Poster Award

• The 34th Synchrotron Radiation Users' Workshop

Graduate Student Excellent Teaching Assistant Award

• PHYS250: Physics Laboratory I

BK21 First Paper Award

• Journal of Medical Internet Research 2020

Best Bechelor's Thesis Award

• A Comprehensive Evaluation of the Process of Copying a Complex Figure in Early- and Late-Onset Alzheimer Disease

Frustrated phonon with charge density wave in vanadium Kagome metal

• Seung-Phil Heo, Choongjae Won, Heemin Lee, Hanbyul Kim, Eunyoung Park, Sung Yun Lee, Junha Hwang, Hyeongi Choi, Sang-Youn Park, Byungjune Lee, Woo-Suk Noh, Hoyoung Jang, Jae-Hoon Park, Dongbin Shin*, and Changyong Song*, Nature Communications 16, 4861 (2025).

Deep-learning real-time phase retrieval of imperfect diffraction patterns from X-ray free-electron lasers

• Sung Yun Lee, Do Hyung Cho, Chulho Jung, Daeho Sung, Daewoong Nam, Sangsoo Kim, and Changyong Song*, npj Computational Materials 11, 68 (2025).

Development of the Nanobeam X-ray Experiments instrument at PAL-XFEL

• Jangwoo Kim†, HyoJung Hyun†, Seonghan Kim, Sun Min Hwang, Myong-Jin Kim, Dogeun Jang, Kyung Sook Kim, Jaeyong Shin, Sejin Kim, Junha Hwang, Sung Yun Lee, Eunyoung Park, Sangsoo Kim, Intae Eom, Changyong Song, and Daewoong Nam*, Journal of Synchrotron Radiation 32(2), 466-473 (2025).

Off-Axis X-Ray Vortex Beam Ptychography

• Sung Yun Lee, Eunyoung Park, Sinwoo Kim, Euije Jo, Su Yong Lee, Jun Woo Choi, and Changyong Song*, ACS Photonics 11(9), 3804-3810 (2024).

Inverted nucleation for photoinduced nonequilibrium melting

• Junha Hwang†, Yungok Ihm†, Daewoong Nam, Jaeyong Shin, Eunyoung Park, Sung Yun Lee, Heemin Lee, Seung-Phil Heo, Sangsoo Kim, Je Young Ahn, Ji Hoon Shim, Minseok Kim, Intae Eom, Do Young Noh, and Changyong Song*, Science Advances 10(18), eadl6409 (2024).

Development of the multiplex imaging chamber at PAL-XFEL

• Junha Hwang, Sejin Kim, Sung Yun Lee, Eunyoung Park, Jaeyong Shin, Jae Hyuk Lee, Myong-jin Kim, Seonghan Kim, Sang-Youn Park, Dogeun Jang, Intae Eom, Sangsoo Kim, Changyong Song, Kyung Sook Kim*, and Daewoong Nam*, Journal of Synchrotron Radiation 31(3), 469-477 (2024).

Nanoscale Three-Dimensional Network Structure of a Mesoporous Particle Unveiled via Adaptive Multidistance Coherent X-ray Tomography

• Sung Yun Lee†, Do Hyung Cho†, Sung Chan Song†, Jaeyong Shin, Junha Hwang, Eunyoung Park, Su Yong Lee, Seongseop Kim, Jinwoo Lee, and Changyong Song*, ACS Nano 17(22), 22488-22498 (2023).

Denoising low-intensity diffraction signals using k-space deep learning: Applications to phase recovery

• Sung Yun Lee, Do Hyung Cho, Chulho Jung, Daeho Sung, Daewoong Nam, Sangsoo Kim, and Changyong Song*, Physical Review Research 3(4), 043066 (2021).

High-Throughput 3D Ensemble Characterization of Individual Core-Shell Nanoparticles with X-ray Free Electron Laser Single-Particle Imaging

• Do Hyung Cho†, Zhou Shen†, Yungok Ihm, Dae Han Wi, Chulho Jung, Daewoong Nam, Sangsoo Kim, Sang-Youn Park, Kyung Sook Kim, Daeho Sung, Heemin Lee, Jae-Yong Shin, Junha Hwang, Sung Yun Lee, Su Yong Lee, Sang Woo Han, Do Young Noh, N. Duane Loh*, and Changyong Song*, ACS Nano 15(3), 4066-4076 (2021).

A Comprehensive Evaluation of the Process of Copying a Complex Figure in Early- and Late-Onset Alzheimer Disease: A Quantitative Analysis of Digital Pen Data

• Ko Woon Kim†, Sung Yun Lee†, Jongdoo Choi, Juhee Chin, Byung Hwa Lee, Duk L. Na*, and Jee Hyun Choi*, Journal of Medical Internet Research 22(8), e18136 (2020).

Detecting Abuser Group in MMORPG by using Ranking System based on Game Transaction Network

• Sungyun Lee*, Sunghun Kim, Inhae Seok, and Mincheol Kim, Proceeding of the Korea Software Congress 2019 (KSC2019), 46(2), 584-586 (2019).

Apparatus and Method of Processing Image Copying Test for Evaluating Cognitive Impairment, and Computer Readable Recording Medium

• KR, Registration; #1023380710000 (Dec, 2021).

METHOD FOR GAME DATA PROCESSING

• KR, Registration; #1023339410000 (Nov, 2021).

The 5th PAL-XFEL Users' Meeting

• Oral (as an invited student talk)
• Title: Deep learning for coherent diffraction imaging using XFEL

The 36th Synchrotron Radiation Users' Workshop

• Poster
• Title: Off-axis X-ray vortex beam ptychography

American Physical Society (APS) March Meeting 2024

• Oral
• Title: Nanoscale X-ray Tomography of Mesoporous Particle Improved via Adaptive Multidistance Coherent Diffraction Imaging

The 35th Synchrotron Radiation Users' Workshop

• Poster
• Title: Network analysis of pore structure inside mesoporous particle revealed by multi-distance coherent X-ray tomography

2023 Korean Physical Society (KPS) Fall Meeting

• Poster
• Title: Nanoscale three-dimensional network structure of a mesoporous particle unveiled via adaptive multi-distance coherent X-ray tomography

The 3rd PAL-XFEL Users' Meeting

• Poster
• Title: Deep-Learning-Based Denoiser for Phase Recovery of Singe-Shot Diffraction Signals via X-ray Free Electron Laser

The 34th Synchrotron Radiation Users' Workshop

• Poster
• Title: Multi-distance Coherent Diffraction Imaging for Super-resolution X-ray Microscopy

2021 Korean Physical Society (KPS) Fall Meeting

• Poster
• Title: Deep-Learning-Based Denoiser for Phase Recovery of Single-Shot Diffraction Patterns Using XFEL

The 32nd Synchrotron Radiation Users' Workshop

• Poster
• Title: Low Intensity Phase Retrieval Enhanced by Deep Neural Network

Korea Software Congress 2019 (KSC2019)

• Poster
• Title: Detecting Abuser Group in MMORPG by using Ranking System based on Game Transaction Network