About

Using optics and computation to solve problems in medicine.

I'm a PhD candidate at the Laboratory of Physics of Interfaces and Thin Films (LPICM), École Polytechnique, where my work centres on building real-time polarimetric imaging systems for biomedical applications. My research spans polarimetry, optics, physics-informed machine learning, and clinical translation — with a current focus on intraoperative tumour delineation during brain surgery.

Before my PhD, I completed a Master's in Artificial Intelligence focused on biomedical applications, and a Master's in Economics specialising in Health Economics. I also spent time at EY. I work well at the edges between disciplines — translating between physics, computation, economics and clinical practice is where I find my most interesting problems.

Sooyong Chae

Experience

Sep 2024 – Sep 2027

Palaiseau, France

PhD Candidate

École Polytechnique, Institut Polytechnique de Paris

  • Developing physics-informed ML methods for real-time Mueller polarimetric image reconstruction.
  • Polarisation-sensitive Monte Carlo simulation of biological tissue for synthetic data generation.
  • Clinical translation work within HORAO, an SNF Sinergia project.

Aug 2026 – Sep 2026

London, UK

Research Exchange

Hamlyn Centre for Robotic Surgery, Imperial College London

  • Research in surgical imaging and biophotonics under Professor Daniel Elson. (Scheduled)

Sep 2025 – Dec 2025

Miami, USA

Research Exchange

Medical Photonics Laboratory, Florida International University

  • ML models for collagen characterisation using Mueller matrix–SHG prediction.
  • Gestational stage prediction in cervical tissue for preterm birth risk assessment.
  • Built native software (PRIMM) for a portable real-time polarimetric colposcope.

Mar 2024 – Jul 2024

Palaiseau, France

Research Internship

École Polytechnique, Institut Polytechnique de Paris

  • Deep learning pipeline for Mueller matrix analysis across brain, skin, colon, and cervical tissue.
  • Supervised by Dr. Tatiana Novikova.

Mar 2021 – Apr 2022

Dunedin, New Zealand

Research & Teaching

University of Otago

  • ML on continuous glucose monitoring time-series data with Prof. Trenton G. Smith.
  • Research assistant to Prof. Stephen Knowles (experimental economics).
  • Tutor for Economics and Business Statistics (SPSS, Excel).

Education

Sep 2024 – Sep 2027

Palaiseau, France

Doctor of Philosophy, Physics

École Polytechnique, Institut Polytechnique de Paris

Real-time Mueller polarimetric imaging for neurosurgery. Supervised by Dr. Tatiana Novikova. Funded by École Polytechnique doctoral scholarship.

Completed

Wellington, New Zealand

Master of Artificial Intelligence

Victoria University of Wellington

Non-invasive glucose prediction via hyperspectral imaging and Monte Carlo skin simulation. Supervisor: Dr. Alex Doronin.

Completed

Dunedin, New Zealand

Master of Economics

University of Otago

Behavioural and health economics. Supervisor: Prof. Trenton G. Smith.

Completed

Dunedin, New Zealand

Bachelor of Science, Economics

University of Otago

Skills & Expertise

My work sits at the intersection of biomedical optics, physics-informed machine learning, and medical imaging — building systems that translate light physics into clinical tools.

Biomedical OpticsMueller PolarimetryMedical ImagingComputer VisionMonte Carlo SimulationSurgical GuidancePhysics-Informed MLDeep LearningPyTorchMachine LearningScikit-learnPythonSQLRMATLABC++GitDockerGCPAzurePower BI
Languages — English (native) · Korean (native) · French (working)

Awards & Honours

2026

SPIE Best Student Paper Presentation Award

2026

Hi! PARIS Collaborative Project Funding

2026

COST Short-Term Scientific Mission Grant

2026

SPIE Conference Fellowship

2025

Optica Best Student Poster Award

2025

3MT® Competition Winner

2025

BME Research Exchange Award

2024

École Polytechnique Doctoral Scholarship

Outside the Lab

When I'm not in the lab, I enjoy running. I've completed a 100-mile ultramarathon and a 140 km backyard ultra (track format), and I aim for at least one marathon and one ultramarathon per year.

I sometimes post running things and personal updates on Instagram @chaetries.

Curriculum Vitae

Condensed CV available to download. Contact me for the full academic CV.

Download CV

Affiliations & Experience

École Polytechnique
Imperial College London
Florida International University
HORAO
EY
Victoria University of Wellington
University of Otago
MIT Sloan
KOTRA